#  @biointeractive biointeractive biointeractive posts on YouTube about science, education, theory, animation the most. They currently have [-------] followers and [--] posts still getting attention that total [-----] engagements in the last [--] hours. ### Engagements: [-----] [#](/creator/youtube::UCdofq4hHbT3ZDzgYUqsDd1A/interactions)  - [--] Week [------] +21% - [--] Month [-------] +251% - [--] Months [---------] +17% - [--] Year [---------] +142% ### Mentions: [--] [#](/creator/youtube::UCdofq4hHbT3ZDzgYUqsDd1A/posts_active)  - [--] Months [--] -27% - [--] Year [--] +244% ### Followers: [-------] [#](/creator/youtube::UCdofq4hHbT3ZDzgYUqsDd1A/followers)  - [--] Week [-------] no change - [--] Month [-------] +0.38% - [--] Months [-------] +1.90% - [--] Year [-------] +4.30% ### CreatorRank: [---------] [#](/creator/youtube::UCdofq4hHbT3ZDzgYUqsDd1A/influencer_rank)  ### Social Influence **Social category influence** [countries](/list/countries) 10.47% [travel destinations](/list/travel-destinations) 3.49% [finance](/list/finance) 1.16% [technology brands](/list/technology-brands) 1.16% [social networks](/list/social-networks) 1.16% **Social topic influence** [science](/topic/science) 27.91%, [education](/topic/education) 16.28%, [theory](/topic/theory) 8.14%, [animation](/topic/animation) 4.65%, [food](/topic/food) 4.65%, [university of](/topic/university-of) #1120, [what is](/topic/what-is) 4.65%, [human](/topic/human) 3.49%, [infectious disease](/topic/infectious-disease) 3.49%, [in the](/topic/in-the) 3.49% **Top assets mentioned** [jesse (JESSE)](/topic/jesse) [Reef (REEF)](/topic/reef) ### Top Social Posts Top posts by engagements in the last [--] hours "Seed Dispersal and Habitat Fragmentation HHMI BioInteractive Video Watch researchers follow brown spider monkeys in a tropical forest of Colombia to determine which plant seeds they are dispersing. Seed dispersers are critical to the forests ability to grow and regenerate. As the tropical forests of Colombia are cleared for farmland and cattle ranches the remaining patches of forest become fewer smaller and further apart from each other threatening the survival of the animals that live there including brown spider monkeys. Brown spider monkeys are critical seed dispersers and as their numbers" [YouTube Link](https://youtube.com/watch?v=0m6AjWZ2p8I) 2017-06-07T13:00Z 267K followers, 108.2K engagements "Tiktaalik and the Fossil Record HHMI BioInteractive Video In [----] Neil Shubin discovered the fossil that he named Tiktaalika creature with a mix of features common to fish and four-legged land animals. Tiktaalik lived [---] million years ago when some animals first made the transition from life in water to life on land. See the fossil evidence of evolution in this exciting video about one of the greatest paleontological discoveries in history. For more videos on important transitions in evolution see our playlist at https://www.youtube.com/playlistlist=PLI1XjFOSo4gNGI8qtB_DdR9E6DGXPZVRX For" [YouTube Link](https://youtube.com/watch?v=1-_gPU4j7PA) 2014-04-24T14:18Z 267K followers, 40.8K engagements "The DNA Double Helix Discovery HHMI BioInteractive Video The discovery of the structure of the DNA double helix was one of the most important of the 20th century. In this educational video explore Watson and Cricks quest to understand DNAs structure and Rosalind Franklins key insights via x-ray crystallography. Rarely seen archival footage is combined with interviews with some of todays leading scientists to bring this Nobel Prizewinning discovery and all of its scientific implications to life. Free classroom resources supporting this short film can be found at" [YouTube Link](https://youtube.com/watch?v=1vm3od_UmFg) 2014-08-26T11:49Z 267K followers, 1.4M engagements "Cystic Fibrosis Mechanism and Treatment HHMI BioInteractive Video Mutations in the CFTR gene which encodes a transmembrane ion channel cause mucus buildup in the airways of patients with cystic fibrosis. This animation can be used to illustrate the connection between genotype and phenotype using a human disease example. It also demonstrates how knowledge about the genetic mutations responsible for a particular disease can be used to develop a treatment. Cystic fibrosis is an autosomal recessive disease caused by any one of more than [----] mutations in a gene that codes for the cystic fibrosis" [YouTube Link](https://youtube.com/watch?v=6IbP1ASGv9w) 2018-04-19T15:22Z 267K followers, 316.1K engagements "Genes as Medicine HHMI BioInteractive video Watch the story of how gene therapy restored the sight of a nearly-blind young patient. Told from the perspective of two researchers who spent over [--] years working to develop this breakthrough technology this short film chronicles their successes and challenges and illustrates how the method works to treat inherited conditions. Gene therapy is a method for treating inherited diseases by delivering corrective versions of genes to patients. The development of this technology has been on a roller coaster of advances and setbacks over the last two" [YouTube Link](https://youtube.com/watch?v=GGEiaDau7hU) 2017-11-27T17:22Z 267K followers, 233.3K engagements "Out of the Ashes: Dawn of the Age of Mammals HHMI BioInteractive Video Sixty-six million years ago a giant asteroid struck the Earth. It wiped out 90% of all species including all the large dinosaurs. How did life on Earth recover after this mass extinction This video follows paleontologists working at a fossil site near Denver Colorado. Their discoveries along with discoveries from other sites have allowed scientists to piece together how ecosystems recovered and changed in the aftermath of the asteroid. For more information and related materials visit HHMI BioInteractive:" [YouTube Link](https://youtube.com/watch?v=IPlOLaY5xbA) 2020-05-01T12:20Z 267K followers, 126K engagements "Selection for Tuskless Elephants HHMI BioInteractive Video Working in Gorongosa National Park Mozambique Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Most African elephants have tusks but someabout [--] to 6% of females and even fewer malesnever grow them. Elephant tusks are important for obtaining food and water and essential to male elephants for competing for mates so there is a strong natural selection for having tusks. But the proportion of tuskless elephants has increased in some populations. In this video Dr. Joyce Poole explains a possible" [YouTube Link](https://youtube.com/watch?v=IxJDUrDH9v4) 2016-09-23T12:28Z 267K followers, 543K engagements "HIV Life Cycle HHMI BioInteractive Video How HIV infects a cell and replicates itself using reverse transcriptase and the host's cellular machinery. For more information on HIV' visit https://www.biointeractive.org/classroom-resources/virus-explorer howard hughes medical institute hhmi biointeractive hiv aids virus reverse transcriptase azt viral life cycle infectious disease retrovirus howard hughes medical institute hhmi biointeractive hiv aids virus reverse transcriptase azt viral life cycle infectious disease retrovirus" [YouTube Link](https://youtube.com/watch?v=PlSvywlLuNw) 2016-10-05T14:15Z 267K followers, 828K engagements "The Making of the Fittest: Evolving Switches Evolving Bodies HHMI BioInteractive Video Natural selection leads to the evolution of new traits. In this educational video see how stickleback fish have adapted to live permanently in freshwater environments. Explore a case study of natural selection with this classroom-ready biology video. Though stickleback fish once lived in the ocean some populations now thrive in freshwater environments. This change resulted in drastic physical transformations. Explore topics in gene expression and adaptation in this fascinating short film. For more" [YouTube Link](https://youtube.com/watch?v=Pv4Ca-f4W9Q) 2014-08-26T11:49Z 267K followers, 604.6K engagements "Animated Life: Pangea Wegener and Continental Drift HHMI BioInteractive Video This animated short tells the story of Alfred Wegener a German astronomer and atmospheric scientist who came up with the idea that continents once formed a single landmass and had drifted apart. Continental drift explained why continents' shapes fit together like pieces of a puzzle and why distant continents had the same fossils . During Wegeners time the idea was met with hostility but after his death a large body of evidence showed that continents do indeed move. Today the theory of plate tectonics is a" [YouTube Link](https://youtube.com/watch?v=RgJZ0ySEKYg) 2015-03-20T09:14Z 267K followers, 599.1K engagements "Serengeti: Natures Living Laboratory HHMI BioInteractive Video This film explores the foundational research in the Serengeti National Park Tanzania that uncovered many of the ecological principles that govern how animal populations and communities are regulated. This is the story of how ecologists Tony Sinclair Simon Mduma and Grant Hopcraft spent five decades piecing together the mystery of what makes the Serengeti the way it is and the central role wildebeest play. The film is divided into three main chapters. Chapter [--] explores the phenomenon of the sudden increase in wildebeest and" [YouTube Link](https://youtube.com/watch?v=Sx3MTTtUw7Y) 2019-10-09T09:16Z 267K followers, 256.4K engagements "How We Get Our Skin Color HHMI BioInteractive Video Narrated by anthropologist Nina Jablonski this engaging animation shows how human skin cells produce the pigment melanin which gives skin its color. To view a short film on the evolution of skin color go to http://www.hhmi.org/biointeractive/biology-skin-color To download this video and to discover related material go to http://www.biointeractive.org/how-we-get-our-skin-color Skin (Anatomical Structure) Human Skin Color (Color) Howard Hughes Medical Institute (Award Winner) melanin nina jablonski melanocytes melanosomes epidermis uv rays" [YouTube Link](https://youtube.com/watch?v=VC0TL_lYLm8) 2015-06-30T12:53Z 267K followers, 1.1M engagements "The Making of a Theory: Darwin Wallace and Natural Selection HHMI BioInteractive Video Explore scientific discoveries alongside their discoverers. This educational biography of Charles Darwin and Alfred Russel Wallace tells the story of two independent discoveries of the natural origin of species. Traverse the epic voyages and revolutionary insights of two brave young British naturalists as they change science forever. This video provides an overview of the history of the theory of evolution. Perfect for biology lesson plans at all levels this short film is sure to educate and entertain" [YouTube Link](https://youtube.com/watch?v=XOiUZ3ycZwU) 2014-08-26T11:49Z 267K followers, 1.5M engagements "Great Transitions: The Origin of Humans HHMI BioInteractive Video Which traits distinguish humans from other primates When and where did these traits evolve Discover the latest findings on hominid evolution in this classroom-ready biology video. Paleontologists have studied the fossil record of human evolution just like they have done for other major transitions including the evolution of tetrapods from fish and the evolution of birds from dinosaurs. In this film part of the Great Transitions trilogy Sean Carroll and Tim White focus on the evolution of three traits: larger brains tool use and" [YouTube Link](https://youtube.com/watch?v=Yjr0R0jgct4) 2014-12-09T13:27Z 267K followers, 1.9M engagements "The Effects of Fungicides on Bumble Bee Colonies HHMI BioInteractive Video Are fungicides safe for bumble bees Entomologist Shawn Steffan designed an experiment to answer this question. Fungicides are routinely used in agriculture to protect crops from harmful fungi. Dr. Shawn Steffan at the University of Wisconsin-Madison discovered that the stored pollen and nectar that bumble bee larvae feed on is rich in yeast a type of fungus. Based on this observation he proposed that the use of fungicides could affect bumble bee food stores and ultimately the health of bumble bee colonies. He then" [YouTube Link](https://youtube.com/watch?v=Z0FB1PcRQ8k) 2016-10-07T15:43Z 267K followers, 138K engagements "Coral Bleaching Animation HHMI BioInteractive Video Zoom into a coral reef and discover photosynthetic algae inside the corals cells. Reef-building corals rely on these symbionts for their survival. This stunning animation is perfect for all levels of biology and environmental science classes. Corals get their energy in part from microscopic symbiotic algae that live inside their cells. These algae called zooxanthellae produce sugar and other nutrients through photosynthesis. When ocean temperatures rise beyond a certain threshold the symbionts photosynthetic machinery may be damaged and" [YouTube Link](https://youtube.com/watch?v=_ZfGIKiSwwQ) 2014-11-04T17:32Z 267K followers, 235.2K engagements "Salamander Limb Regeneration HHMI BioInteractive Video Newts and salamanders can regrow limbs that were severed off. Watch this classroom-ready science animation to see how stem cells enable regeneration. This video is part of the [----] Holiday Lectures on stem cells. Watch the rest of the lectures or download the animation on the BioInteractive website: https://www.biointeractive.org/classroom-resources/salamander-limb-regeneration Regeneration Animal (Film Genre) Newt (Animal) limb regeneration can you grow a limb back HHMI BioInteractive Science Education stem cells Howard Hughes Medical" [YouTube Link](https://youtube.com/watch?v=byLDgtSMI0w) 2014-12-17T04:12Z 267K followers, 25M engagements "Seeing the Invisible: van Leeuwenhoek's first glimpses of the microbial world Tambin disponible con narracin en espaol: http://youtu.be/57SZHltgSJc In [----] Antonie van Leeuwenhoek looked at a drop of lake water through his homemade microscope and discovered an invisible world that no one knew existed. His work inspired countless microbiology researchers including HHMI investigator Bonnie Bassler one of the narrators of this animated feature. Leeuwenhoek was a haberdasher and city official in Delf The Netherlands.He started making simple microscopes and using them to observe the world around" [YouTube Link](https://youtube.com/watch?v=ePnbkNVdPio) 2014-10-21T12:43Z 267K followers, 468.1K engagements "The Biology of Skin Color HHMI BioInteractive Video Penn State University anthropologist Dr. Nina Jablonski explains how different shades of skin color arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. This film is appropriate for science classes from middle school to college. The content connects to key concepts in biology human biogeography genetics and anatomy and physiology. Chemistry and biochemistry classes will appreciate the focus on the effects of UV radiation on DNA folate degradation and vitamin D synthesis. To find classroom resources" [YouTube Link](https://youtube.com/watch?v=hFw8mMzH5YA) 2015-07-21T01:20Z 267K followers, 1.6M engagements "Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades The short film opens with two questions: So what determines how many species live in a given place Or how many individuals of the species can live somewhere The research that provided answers to these questions was set in motion by key experiments by ecologists Robert Paine and James Estes. Robert Paines starfish exclusion experiments on the coast of Washington state showed that removing starfish from this marine ecosystem has a big impact on the population sizes of other species establishing the starfish as a" [YouTube Link](https://youtube.com/watch?v=hRGg5it5FMI) 2016-05-03T17:08Z 267K followers, 1.3M engagements "The Great Elephant Census HHMI BioInteractive Video How many African elephants are left and where are they This video follows the work of researchers conducting the first census of African savanna elephants in over [--] years and the methods they are using to obtain accurate up-to-date numbers across the continent. African elephants are threatened by habitat loss and by poaching to support the ivory trade. Conservation groups estimate that as many as [---] elephants are killed each day so it is critically important to determine how many elephants remain and where they are. Scientists involved in" [YouTube Link](https://youtube.com/watch?v=imvehfydUpc) 2016-09-01T12:17Z 267K followers, 246.7K engagements "Popped Secret: The Mysterious Origin of Corn HHMI BioInteractive Video Where did corn come from Genetic and archeological data point to what may seem like an unlikely ancestor. Discover the secret of corn in this HHMI BioInteractive educational video. Popped Secret: The Mysterious Origin of Corn tells the story of the genetic changes involved in the transformation of a wild grass called teosinte into corn. Evidence from genetics supports archeological findings pinpointing corns origins to a very particular time and place in Mexico. Use this video to see how a small number of genetic changes" [YouTube Link](https://youtube.com/watch?v=mBuYUb_mFXA) 2015-03-04T14:37Z 267K followers, 416.9K engagements "Galapagos Finch Evolution HHMI BioInteractive Video The Galpagos finches remain one of our worlds greatest examples of adaptive radiation. Watch as evolutionary biologists Rosemary and Peter Grant detail their 40-year project to painstakingly document the evolution of these famous finches. Their pioneering studies have revealed clues as to how [--] distinct finch species arose from a single ancestral population that migrated to the islands [--] million to [--] million years ago. Use this video as a supplementary resource for lesson plans centered on teaching evolution. The video expertly illustrates" [YouTube Link](https://youtube.com/watch?v=mcM23M-CCog) 2014-08-26T11:49Z 267K followers, 2.2M engagements "The Phylogenetic Tree of Anole Lizards HHMI BioInteractive Video Biologist Jonathan Losos describes the traits that enable anole lizard species to live in their various habitats. In this educational video join Dr. Losos on his quest to understand evolution by natural selection. Explore the evolutionary path of the green anole lizards found in the Caribbean. Discover how the different species have evolved traits adapted to their environments and developed into distinct species. Free classroom resources supporting this short film can be found at" [YouTube Link](https://youtube.com/watch?v=rdZOwyDbyL0) 2014-08-26T11:49Z 267K followers, 1.2M engagements "Natural Selection and the Rock Pocket Mouse HHMI BioInteractive Video How quickly can natural selection work "The Making of the Fittest: Natural Selection and Adaptation" tells the story of a living example of Darwin's process of natural selection and shows how quickly a trait can spread through a population when natural selective pressure is strong. The rock pocket mouse shows how different genetic changes can lead to the same adaptation a coat color that hides the rock pocket mice from predators such as owls. Explore a classic case study in natural selection and evolution with your science" [YouTube Link](https://youtube.com/watch?v=sjeSEngKGrg) 2014-08-26T11:49Z 267K followers, 2.4M engagements "The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive Video Ever wonder why the dinosaurs disappeared HHMI BioInteractive investigates the cause of the mass extinction at the end of the Cretaceous periodand the clues come from paleontology chemistry physics and biology. This three-act film tells the story of the extraordinary detective work that solved one of the greatest scientific mysteries of all time. Explore the fossil evidence of these prehistoric animals and other organisms that went extinct through this lively educational video. See more HHMI" [YouTube Link](https://youtube.com/watch?v=tRPu5u_Pizk) 2014-08-26T11:49Z 267K followers, 14.6M engagements "Virus Hunter: Monitoring Nipah Virus in Bat Populations HHMI BioInteractive Video In this video we follow scientists working in Bangladesh as they test fruit bat populations to determine whether they are infected with Nipah virusa potentially deadly virus when passed on to humans. Fruit bats (also called flying foxes) of the genus Pteropus carry a virus called Nipah which can be transmitted to humans and cause severe disease. In Bangladesh the virus causes a disease outbreak almost every year. Dr. Jon Epstein of the EcoHealth Alliance walks us through the evidence that established that bats" [YouTube Link](https://youtube.com/watch?v=tbx6fqYdNWc) 2016-08-03T16:36Z 267K followers, 512K engagements "The Origin of Birds HHMI BioInteractive Video In the second film of the Great Transitions trilogy paleontologist Julia Clarke takes us on a journey to uncover the evidence that birds are dinosaurs. The discovery of Archaeopteryx in a quarry in Germany in the early 1860s provided the first clue that birds descended from reptiles. But what kind of reptile In the last [--] years scientists have identified many shared features between birds and two-legged carnivorous dinosaurs called theropods. The film illustrates many of the practices of science including asking important questions formulating" [YouTube Link](https://youtube.com/watch?v=z4nuWLd2ivc) 2015-02-13T13:23Z 267K followers, 522.1K engagements "Great Transitions: The Origin of Tetrapods HHMI BioInteractive Video Experience the painstaking search for the fossil of Tiktaalik a fish that illuminates key evolutionary steps in the transition of life from water to land. This biology video gives a glimpse into the exciting world of paleontological discoveries. Watch as University of Chicago paleontologist and award-winning author Neil Shubin provides a first-hand account of the search for Tiktaalik and the evolution of four-legged animals. This video is perfect for science lesson plans of all levels. For more information and related" [YouTube Link](https://youtube.com/watch?v=zK8XGEDcTfo) 2014-08-26T11:49Z 267K followers, 464.3K engagements "Malaria Life Cycle Animation: Mosquito Host HHMI BioInteractive Video A mosquito becomes infected with malaria when it bites an infected human. Once inside the mosquito the parasites reproduce in the gut and accumulate in the salivary glands ready to infect another human host with the next bite. Learn how one of the most dangerous mosquito-borne diseases is transmitted with this educational animation on the malaria life cycle. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans For more classroom" [YouTube Link](https://youtube.com/watch?v=0uyE046It3o) 2014-06-11T14:14Z 263K followers, 587K engagements "Humans Biodiversity and Habitat Loss HHMI BioInteractive Video This [--] minute video lists human activities and their threats to biodiversity. In the second lecture of the series "Biodiversity in the Age of Humans" Dr. Elizabeth Hadly of Stanford University reveals how human activities have caused the extinctions of many species in the past and the present. Human population growth is driving habitat destruction and climate change both direct threats to biodiversity. Visit the BioInteractive series page for related videos and supporting materials for the classroom:" [YouTube Link](https://youtube.com/watch?v=1drkFgHbcWY) 2015-04-08T18:41Z 262K followers, 88.6K engagements "HHMI Educator Tips BCR-ABL Cancer Protein Structure and Function Mary Wuerth explains how she uses the BCR-ABL Click & Learn to teach the importance of protein structure in understanding how proteins work and how scientists use that knowledge to design drugs to fight cancer" [YouTube Link](https://youtube.com/watch?v=1ntPxw2-Rls) 2017-06-16T18:36Z 261K followers, [----] engagements "Photosynthesis: Part 5: Light Reactions HHMI BioInteractive Video This animation provides a detailed look at the chemical processes in the light reactions of photosynthesis. It is appropriate for advanced high school biology through college-level students. The light reactions of photosynthesis transform light energy into chemical energy stored in molecules of ATP and NADPH. Chlorophyll molecules absorb photons of light in two photosystems which are embedded in the thylakoid membrane of the chloroplast. The photons energize electrons in the chlorophyll molecules which drives the electrons" [YouTube Link](https://youtube.com/watch?v=4xHPDxVrJqc) 2019-01-23T18:42Z 264K followers, 194.2K engagements "Niche Partitioning and Species Coexistence HHMI BioInteractive video Professor Robert Pringle describes the cutting-edge method of DNA metabarcoding used to reveal how similar animals share resources. One of the big questions in ecology is how do similar animals coexist in the same place. Dr. Robert Pringle and his team are using new technologies to better understand the ways in which three different species of African antelope partition niches within their habitat. To download this film or to find related activities and materials visit HHMI BioInteractive:" [YouTube Link](https://youtube.com/watch?v=8eH6X2rAQEs) 2015-11-11T19:56Z 262K followers, 223.5K engagements "Identifying the Key Genes for Regeneration HHMI BioInteractive Video Planarians have an amazing ability to regenerate lost tissues. In this video scientists knock out two different genes in planaria to start to understand how the process worksand they generate animals with two heads and two tails For more information and related materials visit HHMI BioInteractive: https://www.hhmi.org/biointeractive/identifying-key-genes-regeneration" [YouTube Link](https://youtube.com/watch?v=Bw1U7_Tk0H0) 2017-11-09T12:31Z 264K followers, 81.2K engagements "ATP Synthesis HHMI BioInteractive Video This animation shows how the proton gradient across the mitochondrial membrane powers the ATP synthase enzyme to make ATP. It is the fifth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3: Citric Acid Cycle" [YouTube Link](https://youtube.com/watch?v=CSrtewCJbpg) 2020-10-05T13:09Z 257K followers, 60.9K engagements "The Origin of Flight--What Use is Half a Wing HHMI BioInteractive Video Biologist Ken Dial's study of how young birds use their developing wings sheds light on the evolution of flight in birds. At the University of Montanas Flight Lab Ken Dial has been researching the mechanics of bird flight. His experiments with young birds that are learning to fly provide new evidence for how flight might have evolved in a group of feathered theropod dinosaurs. Critics of evolutionary theory had asked Charles Darwin the question what use is half a wing in other words what evolutionary advantage would a" [YouTube Link](https://youtube.com/watch?v=JMuzlEQz3uo) 2015-11-11T12:50Z 259K followers, 462.6K engagements "Stone Tool Technology of Our Human Ancestors HHMI BioInteractive Video Stone tools reveal a critical transition in the lives of our early human ancestors. Learn about how technological advances went hand-in-hand with human evolution in this educational video by HHMI BioInteractive. Though tool use is not unique to humans the sophistication of our tools and our degree of reliance upon them is unique and sets us apart from other species. So when did human tool-making begin and why And what does it tell us about the evolution of our ancestors Paleoanthropologist Tim White reveals the answers in" [YouTube Link](https://youtube.com/watch?v=L87Wdt044b0) 2015-03-27T16:31Z 258K followers, 307.6K engagements "Moth Mimicry: Using Ultrasound to Avoid Bats HHMI BioInteractive Video This video follows scientists as they uncover the ways in which moth species in Gorongosa National Park use ultrasound to avoid being eaten by bats. Jesse Barber of Boise State University headed to Gorongosa National Park with two graduate students to study bat-moth predator-prey interactions. They design several experiments to determine the strategies that have evolved in these Gorongosa moths to avoid being eaten by bats. The strategies involve the use of ultrasound to either jam bats sonars or to signal to bats that" [YouTube Link](https://youtube.com/watch?v=NeCmSL_N65A) 2016-05-10T10:28Z 258K followers, 112.9K engagements "Think Like a Scientist--Natural Selection in an Outbreak HHMI BioInteractive The tragic [--------] Ebola outbreak in west Africa shocked the world. In this episode of Think Like a Scientist computational genetiicist Pardis Sabeti and disease ecologist Lina Moses bring us to the front line of the epidemic and explain the science behind how this event became the largest ebola outbreak in history. This film was produced by Day's Edge Productions for HHMI BioInteractive and Nautilus Magazine. Check out the full story here: nautil.us/issue/41/selection/natural-selection-in-an-outbreak" [YouTube Link](https://youtube.com/watch?v=Tq2GhPZvdkU) 2016-12-07T14:16Z 258K followers, 138.6K engagements "The Icefish Has Clear Blood HHMI BioInteractive Video See clear blood run through the veins of the icefish a demonstration of the process of natural selection. This video uses the Antarctic icefish as an excellent case study for genetic evolution and is perfect for all science classes. See how these amazing fish avoid freezing in the icy ocean. Genetic changes enable icefish to thrive without hemoglobin and red blood cells. Natural selection has resulted in the birth of new genes and the death of old ones. Free classroom resources supporting this short film can be found at" [YouTube Link](https://youtube.com/watch?v=WpIe8_pUSu4) 2023-10-23T11:53Z 239K followers, 213K engagements "Malaria Life Cycle Animation: Human Host HHMI BioInteractive Video When a mosquito carrying the malaria parasite bites a human host the parasite enters the bloodstream multiplies in the liver cells and is released back into the bloodstream. Experience the malaria life cycle in this animated video. How do you get malaria Is the disease contagious Answer these questions and more by watching this stunning animation on the mosquito-borne disease malaria. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans" [YouTube Link](https://youtube.com/watch?v=Xaxjg9JOxug) 2014-06-12T12:21Z 262K followers, 163.8K engagements "Steve Palumbi and Megan Morikawa Study Coral Reef Damage in American Samoa Can damage to coral reefs be repaired This HHMI BioInteractive video follows two researchers as they look for solutions to a growing problem. Steve Palumbi has been doing research on the corals around Ofu Island in American Samoa for years. He is trying to determine why these native corals can withstand ocean temperatures that in other coral species would lead to coral bleaching. Along with graduate student Megan Morikawa Palumbi is testing whether these heat-resistant corals can be transplanted to reefs that have been" [YouTube Link](https://youtube.com/watch?v=aAoapsP1x8w) 2015-03-26T13:47Z 253K followers, 100K engagements "From Dog DNA to Human Diseases HHMI BioInteractive Video This video follows biologist Elinor Karlsson who studies dogs to find genes associated with traits including certain diseases. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/dog-dna-human-diseases howard hughes medical institute hhmi biointeractive dogs genetics SNPs GWAS artificial selection cancer osteosarcoma howard hughes medical institute hhmi biointeractive dogs genetics SNPs GWAS artificial selection cancer osteosarcoma" [YouTube Link](https://youtube.com/watch?v=en7U9PpBips) 2023-06-01T22:47Z 267K followers, 10.6K engagements "Zebrafish Heart Regeneration HHMI BioInteractive video The zebrafish heart is similar to the human heart in many respects. But unlike the human heart the fish heart closes wounds rapidly and then regenerates to nearly full function. When the zebrafish heart is damaged the wound site is rapidly sealed with a fibrin clot that stems bleeding within seconds. Following clot formation the tissue that surrounds the heart musclethe epicardiumgradually covers the fibrin clot via migration and cell division. Over the next few months new cardiac muscle is produced and replaces the clot. Growth factors" [YouTube Link](https://youtube.com/watch?v=msFpu_q7giI) 2017-05-17T19:17Z 258K followers, 30.5K engagements "Studying Elephant Communication HHMI BioInteractive Video Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. Scientists are studying whether elephants can hear and interpret these ground vibrations. For decades ecologist Caitlin O'Connell-Rodwell has been studying elephant communication in Etosha National Park in northern Namibia. A research associate at Stanford University School of Medicine O'Connell-Rodwell observed that elephants seem to detect vibrations in the ground with their feet and trunk. In this video we" [YouTube Link](https://youtube.com/watch?v=nII9yngRuac) 2017-02-16T13:40Z 258K followers, 166.2K engagements "The Science of Climate Change HHMI BioInteractive Video Floods heat waves droughts and megafires: all are phenomena linked to Earths changing climate. People hear about climate change all the time but how well do they know the evidence This film begins with phenomena linked to climate change and then examines how Earths temperature is controlled how we know it is changing and how the current changes compare to those over the last [------] years. Along the way we meet scientists working at the forefront of climate change: fire scientist Crystal Kolden soil scientist Asmeret Asefaw Berhe" [YouTube Link](https://youtube.com/watch?v=raijIFglj6c) 2021-11-15T20:45Z 261K followers, 124.8K engagements "HIV Origins in Africa HHMI BioInteractive Video How did HIV originally spread to the human population This video clip from Dr. Beatrice Hahn describes the evidence. Use this educational resource to give students the history of HIV's origins. From the [----] Holiday Lectures noted HIV researcher and HHMI Investigator Dr. Bruce Walker introduces a video clip of Dr. Beatrice Hahn of the University of Alabama-Birmingham where she describes the genetic evidence of how HIV spread to human populations in Africa tracing its route across the continent. Download this clip and find more educational" [YouTube Link](https://youtube.com/watch?v=uuY47dis7b0) 2014-10-31T14:29Z 261K followers, 11.1K engagements "Grandes Transiciones: El Origen de las Aves HHMI BioInteractive Video En este segundo cortometraje de la triloga Grandes Transiciones la paleontloga Julia Clarke nos presenta la evidencia de que las aves descendieron de los dinosaurios" [YouTube Link](https://youtube.com/watch?v=1m55t3eJZa4) 2016-03-14T16:53Z 266K followers, 759.4K engagements "The Pregnancy Test and the Frog HHMI Biointeractive Video This video tells the surprising story of how the African clawed frog became a popular pregnancy test from the 1930s to the 1960s. It also discusses the science behind modern pregnancy tests. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/pregnancy-test-frog howard hughes medical institute hhmi biointeractive xenopus pregnancy enzyme-linked immunosorbent assay ELISA human chorionic gonadotropin hCG howard hughes medical institute hhmi biointeractive xenopus" [YouTube Link](https://youtube.com/watch?v=1u49VOoXtbo) 2026-01-22T16:19Z 267K followers, [----] engagements "Sickle Cell: Natural Selection in Humans HHMI BioInteractive Video This film explores the evolutionary connection between an infectious disease malaria and a genetic condition sickle cell disease. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/sickle-cell-natural-selection-humans" [YouTube Link](https://youtube.com/watch?v=CU6ceIdOvxY) 2024-01-29T15:14Z 266K followers, 77K engagements "The Science of Climate Change HHMI BioInteractive Video Floods heat waves droughts and megafires: all are phenomena linked to Earths changing climate. People hear about climate change all the time but how well do they know the evidence This film begins with phenomena linked to climate change and then examines how Earths temperature is controlled how we know it is changing and how the current changes compare to those over the last [------] years. Along the way we meet scientists working at the forefront of climate change: fire scientist Crystal Kolden soil scientist Asmeret Asefaw Berhe" [YouTube Link](https://youtube.com/watch?v=EW1Qi-psAyw) 2025-08-20T19:23Z 267K followers, [----] engagements "Citric Acid Cycle HHMI BioInteractive Video This animation shows the reactions of the citric acid cycle which splits off carbon atoms and generates energy-rich reduced forms of cofactor molecules. It is the third of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3:" [YouTube Link](https://youtube.com/watch?v=IlSFn0gRyC4) 2023-06-01T22:47Z 267K followers, 31.6K engagements "Biology of SARS-CoV-2: Evolution HHMI BioInteractive Video This animation describes how coronaviruses like SARS-CoV-2 evolve and discusses positive negative and neutral mutations. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To download" [YouTube Link](https://youtube.com/watch?v=JmJIF47_f1s) 2020-08-28T13:41Z 266K followers, 34K engagements "Biology of SARS-CoV-2: Infection HHMI BioInteractive Video This animation describes the structure of coronaviruses like SARS-CoV-2 and how they infect humans and replicate inside cells. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To" [YouTube Link](https://youtube.com/watch?v=LoVJCx6XXMM) 2020-08-28T13:41Z 266K followers, 77.1K engagements "The Evolution of Lactose Tolerance HHMI BioInteractive Video All adult mammals but humans are lactose intolerant. Follow human geneticist Spencer Wells director of the Genographic Project of the National Geographic Society as he tracks down the genetic and societal changes associated with the ability to digest lactose as adultsor lactose tolerance. Explore how evolutionary biology and cultural changes led to the evolution of lactose tolerance in this educational video. Free teaching resources supporting this short film can be found at" [YouTube Link](https://youtube.com/watch?v=MA9boI1qTuk) 2014-08-26T11:49Z 266K followers, 838K engagements "Biology of SARS-CoV-2: Detection HHMI BioInteractive Video This animation describes the methods used to detect active and past SARS-CoV-2 infections. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To download these animations and discover" [YouTube Link](https://youtube.com/watch?v=QqQL9uyThKw) 2021-11-08T21:12Z 266K followers, 13.2K engagements "What is CRISPR HHMI BioInteractive Video Scientists who are using CRISPR for basic research medical and agricultural applications share their excitement for this revolutionary technology. Explore CRISPR at: http://www.BioInteractive.org/CRISPR" [YouTube Link](https://youtube.com/watch?v=QsmzFl2OVcw) 2018-04-12T21:52Z 264K followers, [----] engagements "The Science of an Extreme Animal Athlete HHMI BioInteractive Video Biologist Shane Campbell-Staton studies how deer mice living on mountaintops stay warm and active. In this video Campbell-Staton teams up with two colleagues who also happen to be long-distance runners to investigate the adaptations that allow some mice to survive long harsh winters at high elevations. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/science-extreme-animal-athlete" [YouTube Link](https://youtube.com/watch?v=XJnYoBIsW2Y) 2020-02-27T18:38Z 266K followers, 146.2K engagements "HHMI Educator Tips Trophic Cascades Tim Guilfoyle describes how he uses the film and a claim-evidence-reasoning activity to have his students examine Dr. Paine's starfish exclusion experiment" [YouTube Link](https://youtube.com/watch?v=Z-8_lZ5zZdU) 2018-03-07T14:23Z 265K followers, 27.4K engagements "Photosynthesis: Part 2: Chemical Process HHMI BioInteractive Video This animation summarizes the overall chemical process of photosynthesis. It is appropriate for middle school through college-level students. Photosynthesis is a set of chemical reactions that converts light energy into chemical energy. When the photosystems absorb energy from light they strip away the electrons from water molecules. These high-energy electrons are eventually transferred to the carbons in carbon dioxide molecules to make carbohydrates such as G3P (glyceraldehyde 3-phosphate). Producers use carbohydrates to" [YouTube Link](https://youtube.com/watch?v=ZzdIcIv0FHo) 2019-01-23T18:42Z 265K followers, 53.2K engagements "Comparing Model Types Professor Kasey Christopher introduces the three types of models - conceptual causal and stock and flow - that you can create in Model Builder and explains when you might want to use each. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classroom-resources/model-builder howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive" [YouTube Link](https://youtube.com/watch?v=_5gjjnhsht4) 2025-12-18T16:36Z 267K followers, [---] engagements "Interpreting Causal Arrows Educator Amit Morris provides an in-depth look at causal models and support for helping students understand what the positive and negative connectors in these models mean. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classr. howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive" [YouTube Link](https://youtube.com/watch?v=_cIs8WNkHBk) 2025-12-18T16:37Z 267K followers, [---] engagements "Introduction to Model Builder Professor Kasey Christopher provides an introduction to Model Builder and its key features including self-check models custom models created by students or educators and the built-in grading tool. Youll also get an overview of the resources available to support you as you get started with Model Builder along with practical tips for classroom use. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classroom-resources/model-builder howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi" [YouTube Link](https://youtube.com/watch?v=_nokacuK77A) 2025-12-18T16:36Z 267K followers, [---] engagements "How Lizards Are Changing in Cities HHMI BioInteractive Video This film follows a team of scientists in Puerto Rico investigating if and how anole lizards are adjusting to urban environments. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/how-lizards-changing-cities howard hughes medical institute hhmi biointeractive anole evolution natural selection plasticity urban ecology howard hughes medical institute hhmi biointeractive anole evolution natural selection plasticity urban ecology" [YouTube Link](https://youtube.com/watch?v=bIgH0j1AL_Y) 2026-01-22T16:19Z 267K followers, [----] engagements "Photosynthesis HHMI BioInteractive Video This animation explores the process of photosynthesis and the structures that carry it out. Photosynthesis converts light energy from the sun into chemical energy stored in organic molecules which are used to build the cells of many producers and ultimately fuel ecosystems. After providing an overview of photosynthesis the animation zooms inside the cells of a leaf and into a chloroplast to see where and how the reactions of photosynthesis happen. The animation details both the light reactions and the Calvin cycle focusing on the flow of energy and the" [YouTube Link](https://youtube.com/watch?v=c4x-o_4a1dQ) 2019-09-16T13:29Z 265K followers, 219.2K engagements "Biology of SARS-CoV-2: Vaccination HHMI BioInteractive Video This animation describes the different types of vaccinations and how they prevent disease. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw To download these animations and discover" [YouTube Link](https://youtube.com/watch?v=fKwcOrE4f20) 2021-06-28T17:01Z 266K followers, 15.9K engagements "Clulas falciformes: seleccin natural en humanos Video HHMI BioInteractive Esta pelcula explora la conexin evolutiva entre una enfermedad infecciosa la malaria y una condicin gentica la anemia falciforme. Encuentra ms informacin y recursos asociados con este video visitando el sitio web de BioInteractive: https://www.biointeractive.org/es/classroom-resources/celulas-falciformes-seleccion-natural-en-humanos howard hughes medical institute hhmi biointeractive anemia falciforme malaria evolucin humana hematologa hemoglobina howard hughes medical institute hhmi biointeractive anemia falciforme" [YouTube Link](https://youtube.com/watch?v=ggjRWmZ45l4) 2026-01-22T16:22Z 267K followers, [----] engagements "Tim White on the Intersection of Anthropology and Paleontology HHMI BioInteractive Video Paleoanthropologist Tim White discusses how his team unearthed the fossil of Ardipithecus ramidus an early hominid that lived about [---] million years ago. In this classroom-ready science video Dr. White discusses the fossil record and what it reveals about hominid evolution. For more information about this discovery visit the BioInteractive website at http://www.hhmi.org/biointeractive/hominid-paleobiology" [YouTube Link](https://youtube.com/watch?v=k0jtu6JHwn0) 2014-04-24T14:18Z 265K followers, 16.8K engagements "Estall el Secreto: El Misterioso Origen del Maz HHMI BioInteractive Video De dnde vino el maz Evidencia gentica y arqueolgica apunta a lo que parecera ser un ancestro poco probable: un pasto silvestre de Mxico llamado teosinte. Conoce ms sobre este video y descubre actividades educativas gratuitas en nuestra pgina web. https://www.biointeractive.org/es/classroom-resources/estall-el-secreto-el-misterioso-origen-del-maz" [YouTube Link](https://youtube.com/watch?v=nwvY7ZdDkLc) 2016-07-08T18:17Z 266K followers, 6.5M engagements "In a Minute Science: The Search for a Mutated Gene To design gene therapies for a specific disorder researchers must first locate the gene that causes this disorder. Find out more at: http://bit.ly/SaWRP" [YouTube Link](https://youtube.com/watch?v=oMof7CSr3Dw) 2018-01-12T20:46Z 264K followers, [----] engagements "Sickle Cell: Natural Selection in Humans HHMI BioInteractive Video This film explores the evolutionary connection between an infectious disease malaria and a genetic condition sickle cell disease. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/sickle-cell-natural-selection-humans howard hughes medical institute hhmi biointeractive sickle cell disease malaria human evolution hematology hemoglobin howard hughes medical institute hhmi biointeractive sickle cell disease malaria human evolution hematology hemoglobin" [YouTube Link](https://youtube.com/watch?v=qnadzcmpCDE) 2026-01-22T16:25Z 267K followers, 21.7K engagements "From Ants to Grizzlies: A General Rule for Saving Biodiversity HHMI BioInteractive Video This film explores the species-area relationship a general ecological rule that describes how the number of species in a habitat changes with area and shows how it has been applied to the conservation of protected areas. Habitats are shrinking and becoming more fragmented due to human activities leading to the loss of many species. One tool that scientists are using to conserve Earth's remaining biodiversity is the species-area relationship. The film begins with the story of ant biologist E. O. Wilson who" [YouTube Link](https://youtube.com/watch?v=rXJ3vmOWATk) 2019-06-10T15:15Z 266K followers, 199.4K engagements "Fotosntesis Video HHMI BioInteractive Esta animacin explora el proceso de la fotosntesis y las estructuras que lo llevan a cabo. La fotosntesis convierte la energa lumnica del sol en energa qumica almacenada en molculas orgnicas que se usan para formar las clulas de muchos productores y en ltima instancia alimentar los ecosistemas. Luego de proveer una introduccin sobre la fotosntesis la animacin se adentra a las clulas de una hoja y de un cloroplasto para ver dnde y cmo se llevan a cabo las reacciones de la fotosntesis. Esta animacin detalla las reacciones luminosas y el ciclo de Calvin" [YouTube Link](https://youtube.com/watch?v=sSYV0FcHbPk) 2020-09-17T17:50Z 266K followers, 490.7K engagements "ATP in Use HHMI BioInteractive Video This animation shows two examples of how the cell uses energy from ATP: calcium ion pumps and DNA helicase. It is the sixth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3: Citric Acid Cycle https://youtu.be/IlSFn0gRyC4 Part 4:" [YouTube Link](https://youtube.com/watch?v=vUC5njkOq7o) 2021-07-12T15:44Z 266K followers, 64.9K engagements "Liz Hadly Tracks the Impact of Climate Change in Yellowstone Elizabeth Hadly has been studying biodiversity in Yellowstone National Park for [--] years. Accompanied by biologist Sean Carroll she demonstrates different ways in which climate change is impacting the parks ecosystems. Use this in the classroom as a real-world example of food webs and how they can be disrupted. Find out more about this and other topics on the BioInteractive website: http://www.hhmi.org/biointeractive/biodiversity-age-humans" [YouTube Link](https://youtube.com/watch?v=z6JVmhKsHDo) 2014-11-19T19:00Z 266K followers, 108.6K engagements "Convergent Evolution of Lizards HHMI BioInteractive Video Species of anole lizards with similar body types and adaptations have evolved again and again on each of the four larger Caribbean islands: Puerto Rico Jamaica Cuba and Hispaniola. Hear Harvard University biologist Jonathan Losos describe this compelling example of convergent evolution. This classroom-ready video is perfect for science students learning about evolution and the effects of changing habitats. For more lesson plan resources on anole lizards and speciation see our playlist at" [YouTube Link](https://youtube.com/watch?v=1MBPzzXeTPg) 2014-05-30T00:38Z 267K followers, 22.8K engagements "Life Cycle of the Dengue Fever Virus HHMI BioInteractive Video What is dengue virus and how does it infect a host Learn the life cycle of this dangerous virus through this educational animation. The dengue virus has sophisticated mechanisms for entering a cell for replicating its RNA genome and for translating its proteins. Learn the specifics about this dangerous pathogen and how it spreads. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans For more classroom resources on mosquito-borne diseases see" [YouTube Link](https://youtube.com/watch?v=3LhWuaTRCME) 2014-06-11T14:14Z 267K followers, 356.5K engagements "Biology of Oxygen howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive" [YouTube Link](https://youtube.com/watch?v=CZfjcLYdpPg) 2025-01-13T20:06Z 267K followers, [----] engagements "The Life of Alfred Russel Wallace HHMI BioInteractive Video Entertain your science classroom with a paper-cut animation video tracking the theory of evolution as formulated by Alfred Russel Wallace. Wallace independently formulated his theory of evolution by natural selection at the same time as Charles Darwin. This fun video animates Wallaces life from his boyhood in England to his voyages with Henry Walter Bates and his later adventures in the Malay Archipelago. Learn about one of the founders of natural selection and the theory of evolution in this video perfect for high school biology" [YouTube Link](https://youtube.com/watch?v=H8q3my7ujws) 2014-04-07T12:23Z 267K followers, 63.9K engagements "HHMI Educator Tips Pedigree Analysis Activity Jackie Washington of Nyack College describes how she uses the HHMI BioInteractive pedigree analysis activity in conjunction with the Learning From Patients Holiday Lecture to teach Mendelian genetics to her students. For more resources or to stream or download the lectures go to http://www.hhmi.org/biointeractive/pedigree-analysis howard hughes medical institute hhmi biointeractive pedigree pedigree analysis genomic testing genetic disease howard hughes medical institute hhmi biointeractive pedigree pedigree analysis genomic testing genetic disease" [YouTube Link](https://youtube.com/watch?v=KB5Pd6c1UPo) 2016-10-19T18:57Z 267K followers, [----] engagements "Tracking Lion Recovery in Gorongosa National Park HHMI BioInteractive See how scientists in Gorongosa National Park are using GPS satellite collars and motion-sensitive cameras to gather data about the recovery of the parks lion population. Gorongosa National Park was once famous for its lion population attracting tourists from all over the world. But during Mozambiques struggle for independence and subsequent civil war the parks iconic wildlife was slaughtered. In [----] a massive ecosystem restoration project began. Today many animals are bouncing back in large numbers but its unclear if the" [YouTube Link](https://youtube.com/watch?v=VPP_COhvzn0) 2015-08-06T14:28Z 267K followers, 117.8K engagements "Trophic Cascades in Salt Marsh Ecosystems HHMI BioInteractive Video Ecologist Brian Silliman uses manipulative field experiments to reveal that salt marsh ecosystems are under top down control from consumers and predators. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/trophic-cascades-salt-marsh-ecosystems howard hughes medical institute hhmi biointeractive salt marshes snails blue crabs ecology trophic cascades silliman howard hughes medical institute hhmi biointeractive salt marshes snails blue crabs ecology trophic" [YouTube Link](https://youtube.com/watch?v=b9xVEeYAs3w) 2017-05-15T18:17Z 267K followers, 132.7K engagements "Where Do Our Opposable Thumbs Come From HHMI BioInteractive Video Our opposable thumbs evolved from the hand structure of ancient primates. This instructional classroom video explores the human evolution timeline through our hands. The fossil of Notharctus a tree-dwelling animal sheds light on the evolution of early primates and human anatomy. One of the earliest examples in the fossil record of a creature with bones similar to human hand bones Notharctus opens a window onto the evolution of opposable thumbs. For more videos on human evolution see our evolution playlist at" [YouTube Link](https://youtube.com/watch?v=lDSkmb4UTlo) 2014-04-24T14:18Z 267K followers, 52.9K engagements "The Search for a Mutated Gene HHMI BioInteractive Video How do you identify the disease-causing mutation in a patient with an inherited disease This video illustrates the steps involvedtesting for genes that are the usual suspects searching for mutations in novel genes and assessing links between genotype and phenotype. Just before his sophomore year in college Sam Walker was diagnosed with retinitis pigmentosa (RP) a progressive disease that leads to blindness. It can be caused by mutations in one of over a hundred known genes. We all carry mutations in our genes but most of those mutations" [YouTube Link](https://youtube.com/watch?v=ytz2Dn9qpDU) 2017-12-19T16:48Z 267K followers, 68.7K engagements "Electron Transport Chain HHMI BioInteractive Video This animation shows how the enzyme complexes of the electron transport chain harvest energy from cofactor molecules to pump protons across the mitochondrial membrane and establish a chemical gradient. It is the fourth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate" [YouTube Link](https://youtube.com/watch?v=zNpeuA4gtq0) 2020-10-05T13:09Z 267K followers, 49.2K engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@biointeractive biointeractivebiointeractive posts on YouTube about science, education, theory, animation the most. They currently have [-------] followers and [--] posts still getting attention that total [-----] engagements in the last [--] hours.
Social category influence countries 10.47% travel destinations 3.49% finance 1.16% technology brands 1.16% social networks 1.16%
Social topic influence science 27.91%, education 16.28%, theory 8.14%, animation 4.65%, food 4.65%, university of #1120, what is 4.65%, human 3.49%, infectious disease 3.49%, in the 3.49%
Top assets mentioned jesse (JESSE) Reef (REEF)
Top posts by engagements in the last [--] hours
"Seed Dispersal and Habitat Fragmentation HHMI BioInteractive Video Watch researchers follow brown spider monkeys in a tropical forest of Colombia to determine which plant seeds they are dispersing. Seed dispersers are critical to the forests ability to grow and regenerate. As the tropical forests of Colombia are cleared for farmland and cattle ranches the remaining patches of forest become fewer smaller and further apart from each other threatening the survival of the animals that live there including brown spider monkeys. Brown spider monkeys are critical seed dispersers and as their numbers"
YouTube Link 2017-06-07T13:00Z 267K followers, 108.2K engagements
"Tiktaalik and the Fossil Record HHMI BioInteractive Video In [----] Neil Shubin discovered the fossil that he named Tiktaalika creature with a mix of features common to fish and four-legged land animals. Tiktaalik lived [---] million years ago when some animals first made the transition from life in water to life on land. See the fossil evidence of evolution in this exciting video about one of the greatest paleontological discoveries in history. For more videos on important transitions in evolution see our playlist at https://www.youtube.com/playlistlist=PLI1XjFOSo4gNGI8qtB_DdR9E6DGXPZVRX For"
YouTube Link 2014-04-24T14:18Z 267K followers, 40.8K engagements
"The DNA Double Helix Discovery HHMI BioInteractive Video The discovery of the structure of the DNA double helix was one of the most important of the 20th century. In this educational video explore Watson and Cricks quest to understand DNAs structure and Rosalind Franklins key insights via x-ray crystallography. Rarely seen archival footage is combined with interviews with some of todays leading scientists to bring this Nobel Prizewinning discovery and all of its scientific implications to life. Free classroom resources supporting this short film can be found at"
YouTube Link 2014-08-26T11:49Z 267K followers, 1.4M engagements
"Cystic Fibrosis Mechanism and Treatment HHMI BioInteractive Video Mutations in the CFTR gene which encodes a transmembrane ion channel cause mucus buildup in the airways of patients with cystic fibrosis. This animation can be used to illustrate the connection between genotype and phenotype using a human disease example. It also demonstrates how knowledge about the genetic mutations responsible for a particular disease can be used to develop a treatment. Cystic fibrosis is an autosomal recessive disease caused by any one of more than [----] mutations in a gene that codes for the cystic fibrosis"
YouTube Link 2018-04-19T15:22Z 267K followers, 316.1K engagements
"Genes as Medicine HHMI BioInteractive video Watch the story of how gene therapy restored the sight of a nearly-blind young patient. Told from the perspective of two researchers who spent over [--] years working to develop this breakthrough technology this short film chronicles their successes and challenges and illustrates how the method works to treat inherited conditions. Gene therapy is a method for treating inherited diseases by delivering corrective versions of genes to patients. The development of this technology has been on a roller coaster of advances and setbacks over the last two"
YouTube Link 2017-11-27T17:22Z 267K followers, 233.3K engagements
"Out of the Ashes: Dawn of the Age of Mammals HHMI BioInteractive Video Sixty-six million years ago a giant asteroid struck the Earth. It wiped out 90% of all species including all the large dinosaurs. How did life on Earth recover after this mass extinction This video follows paleontologists working at a fossil site near Denver Colorado. Their discoveries along with discoveries from other sites have allowed scientists to piece together how ecosystems recovered and changed in the aftermath of the asteroid. For more information and related materials visit HHMI BioInteractive:"
YouTube Link 2020-05-01T12:20Z 267K followers, 126K engagements
"Selection for Tuskless Elephants HHMI BioInteractive Video Working in Gorongosa National Park Mozambique Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Most African elephants have tusks but someabout [--] to 6% of females and even fewer malesnever grow them. Elephant tusks are important for obtaining food and water and essential to male elephants for competing for mates so there is a strong natural selection for having tusks. But the proportion of tuskless elephants has increased in some populations. In this video Dr. Joyce Poole explains a possible"
YouTube Link 2016-09-23T12:28Z 267K followers, 543K engagements
"HIV Life Cycle HHMI BioInteractive Video How HIV infects a cell and replicates itself using reverse transcriptase and the host's cellular machinery. For more information on HIV' visit https://www.biointeractive.org/classroom-resources/virus-explorer howard hughes medical institute hhmi biointeractive hiv aids virus reverse transcriptase azt viral life cycle infectious disease retrovirus howard hughes medical institute hhmi biointeractive hiv aids virus reverse transcriptase azt viral life cycle infectious disease retrovirus"
YouTube Link 2016-10-05T14:15Z 267K followers, 828K engagements
"The Making of the Fittest: Evolving Switches Evolving Bodies HHMI BioInteractive Video Natural selection leads to the evolution of new traits. In this educational video see how stickleback fish have adapted to live permanently in freshwater environments. Explore a case study of natural selection with this classroom-ready biology video. Though stickleback fish once lived in the ocean some populations now thrive in freshwater environments. This change resulted in drastic physical transformations. Explore topics in gene expression and adaptation in this fascinating short film. For more"
YouTube Link 2014-08-26T11:49Z 267K followers, 604.6K engagements
"Animated Life: Pangea Wegener and Continental Drift HHMI BioInteractive Video This animated short tells the story of Alfred Wegener a German astronomer and atmospheric scientist who came up with the idea that continents once formed a single landmass and had drifted apart. Continental drift explained why continents' shapes fit together like pieces of a puzzle and why distant continents had the same fossils . During Wegeners time the idea was met with hostility but after his death a large body of evidence showed that continents do indeed move. Today the theory of plate tectonics is a"
YouTube Link 2015-03-20T09:14Z 267K followers, 599.1K engagements
"Serengeti: Natures Living Laboratory HHMI BioInteractive Video This film explores the foundational research in the Serengeti National Park Tanzania that uncovered many of the ecological principles that govern how animal populations and communities are regulated. This is the story of how ecologists Tony Sinclair Simon Mduma and Grant Hopcraft spent five decades piecing together the mystery of what makes the Serengeti the way it is and the central role wildebeest play. The film is divided into three main chapters. Chapter [--] explores the phenomenon of the sudden increase in wildebeest and"
YouTube Link 2019-10-09T09:16Z 267K followers, 256.4K engagements
"How We Get Our Skin Color HHMI BioInteractive Video Narrated by anthropologist Nina Jablonski this engaging animation shows how human skin cells produce the pigment melanin which gives skin its color. To view a short film on the evolution of skin color go to http://www.hhmi.org/biointeractive/biology-skin-color To download this video and to discover related material go to http://www.biointeractive.org/how-we-get-our-skin-color Skin (Anatomical Structure) Human Skin Color (Color) Howard Hughes Medical Institute (Award Winner) melanin nina jablonski melanocytes melanosomes epidermis uv rays"
YouTube Link 2015-06-30T12:53Z 267K followers, 1.1M engagements
"The Making of a Theory: Darwin Wallace and Natural Selection HHMI BioInteractive Video Explore scientific discoveries alongside their discoverers. This educational biography of Charles Darwin and Alfred Russel Wallace tells the story of two independent discoveries of the natural origin of species. Traverse the epic voyages and revolutionary insights of two brave young British naturalists as they change science forever. This video provides an overview of the history of the theory of evolution. Perfect for biology lesson plans at all levels this short film is sure to educate and entertain"
YouTube Link 2014-08-26T11:49Z 267K followers, 1.5M engagements
"Great Transitions: The Origin of Humans HHMI BioInteractive Video Which traits distinguish humans from other primates When and where did these traits evolve Discover the latest findings on hominid evolution in this classroom-ready biology video. Paleontologists have studied the fossil record of human evolution just like they have done for other major transitions including the evolution of tetrapods from fish and the evolution of birds from dinosaurs. In this film part of the Great Transitions trilogy Sean Carroll and Tim White focus on the evolution of three traits: larger brains tool use and"
YouTube Link 2014-12-09T13:27Z 267K followers, 1.9M engagements
"The Effects of Fungicides on Bumble Bee Colonies HHMI BioInteractive Video Are fungicides safe for bumble bees Entomologist Shawn Steffan designed an experiment to answer this question. Fungicides are routinely used in agriculture to protect crops from harmful fungi. Dr. Shawn Steffan at the University of Wisconsin-Madison discovered that the stored pollen and nectar that bumble bee larvae feed on is rich in yeast a type of fungus. Based on this observation he proposed that the use of fungicides could affect bumble bee food stores and ultimately the health of bumble bee colonies. He then"
YouTube Link 2016-10-07T15:43Z 267K followers, 138K engagements
"Coral Bleaching Animation HHMI BioInteractive Video Zoom into a coral reef and discover photosynthetic algae inside the corals cells. Reef-building corals rely on these symbionts for their survival. This stunning animation is perfect for all levels of biology and environmental science classes. Corals get their energy in part from microscopic symbiotic algae that live inside their cells. These algae called zooxanthellae produce sugar and other nutrients through photosynthesis. When ocean temperatures rise beyond a certain threshold the symbionts photosynthetic machinery may be damaged and"
YouTube Link 2014-11-04T17:32Z 267K followers, 235.2K engagements
"Salamander Limb Regeneration HHMI BioInteractive Video Newts and salamanders can regrow limbs that were severed off. Watch this classroom-ready science animation to see how stem cells enable regeneration. This video is part of the [----] Holiday Lectures on stem cells. Watch the rest of the lectures or download the animation on the BioInteractive website: https://www.biointeractive.org/classroom-resources/salamander-limb-regeneration Regeneration Animal (Film Genre) Newt (Animal) limb regeneration can you grow a limb back HHMI BioInteractive Science Education stem cells Howard Hughes Medical"
YouTube Link 2014-12-17T04:12Z 267K followers, 25M engagements
"Seeing the Invisible: van Leeuwenhoek's first glimpses of the microbial world Tambin disponible con narracin en espaol: http://youtu.be/57SZHltgSJc In [----] Antonie van Leeuwenhoek looked at a drop of lake water through his homemade microscope and discovered an invisible world that no one knew existed. His work inspired countless microbiology researchers including HHMI investigator Bonnie Bassler one of the narrators of this animated feature. Leeuwenhoek was a haberdasher and city official in Delf The Netherlands.He started making simple microscopes and using them to observe the world around"
YouTube Link 2014-10-21T12:43Z 267K followers, 468.1K engagements
"The Biology of Skin Color HHMI BioInteractive Video Penn State University anthropologist Dr. Nina Jablonski explains how different shades of skin color arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. This film is appropriate for science classes from middle school to college. The content connects to key concepts in biology human biogeography genetics and anatomy and physiology. Chemistry and biochemistry classes will appreciate the focus on the effects of UV radiation on DNA folate degradation and vitamin D synthesis. To find classroom resources"
YouTube Link 2015-07-21T01:20Z 267K followers, 1.6M engagements
"Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades The short film opens with two questions: So what determines how many species live in a given place Or how many individuals of the species can live somewhere The research that provided answers to these questions was set in motion by key experiments by ecologists Robert Paine and James Estes. Robert Paines starfish exclusion experiments on the coast of Washington state showed that removing starfish from this marine ecosystem has a big impact on the population sizes of other species establishing the starfish as a"
YouTube Link 2016-05-03T17:08Z 267K followers, 1.3M engagements
"The Great Elephant Census HHMI BioInteractive Video How many African elephants are left and where are they This video follows the work of researchers conducting the first census of African savanna elephants in over [--] years and the methods they are using to obtain accurate up-to-date numbers across the continent. African elephants are threatened by habitat loss and by poaching to support the ivory trade. Conservation groups estimate that as many as [---] elephants are killed each day so it is critically important to determine how many elephants remain and where they are. Scientists involved in"
YouTube Link 2016-09-01T12:17Z 267K followers, 246.7K engagements
"Popped Secret: The Mysterious Origin of Corn HHMI BioInteractive Video Where did corn come from Genetic and archeological data point to what may seem like an unlikely ancestor. Discover the secret of corn in this HHMI BioInteractive educational video. Popped Secret: The Mysterious Origin of Corn tells the story of the genetic changes involved in the transformation of a wild grass called teosinte into corn. Evidence from genetics supports archeological findings pinpointing corns origins to a very particular time and place in Mexico. Use this video to see how a small number of genetic changes"
YouTube Link 2015-03-04T14:37Z 267K followers, 416.9K engagements
"Galapagos Finch Evolution HHMI BioInteractive Video The Galpagos finches remain one of our worlds greatest examples of adaptive radiation. Watch as evolutionary biologists Rosemary and Peter Grant detail their 40-year project to painstakingly document the evolution of these famous finches. Their pioneering studies have revealed clues as to how [--] distinct finch species arose from a single ancestral population that migrated to the islands [--] million to [--] million years ago. Use this video as a supplementary resource for lesson plans centered on teaching evolution. The video expertly illustrates"
YouTube Link 2014-08-26T11:49Z 267K followers, 2.2M engagements
"The Phylogenetic Tree of Anole Lizards HHMI BioInteractive Video Biologist Jonathan Losos describes the traits that enable anole lizard species to live in their various habitats. In this educational video join Dr. Losos on his quest to understand evolution by natural selection. Explore the evolutionary path of the green anole lizards found in the Caribbean. Discover how the different species have evolved traits adapted to their environments and developed into distinct species. Free classroom resources supporting this short film can be found at"
YouTube Link 2014-08-26T11:49Z 267K followers, 1.2M engagements
"Natural Selection and the Rock Pocket Mouse HHMI BioInteractive Video How quickly can natural selection work "The Making of the Fittest: Natural Selection and Adaptation" tells the story of a living example of Darwin's process of natural selection and shows how quickly a trait can spread through a population when natural selective pressure is strong. The rock pocket mouse shows how different genetic changes can lead to the same adaptation a coat color that hides the rock pocket mice from predators such as owls. Explore a classic case study in natural selection and evolution with your science"
YouTube Link 2014-08-26T11:49Z 267K followers, 2.4M engagements
"The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive Video Ever wonder why the dinosaurs disappeared HHMI BioInteractive investigates the cause of the mass extinction at the end of the Cretaceous periodand the clues come from paleontology chemistry physics and biology. This three-act film tells the story of the extraordinary detective work that solved one of the greatest scientific mysteries of all time. Explore the fossil evidence of these prehistoric animals and other organisms that went extinct through this lively educational video. See more HHMI"
YouTube Link 2014-08-26T11:49Z 267K followers, 14.6M engagements
"Virus Hunter: Monitoring Nipah Virus in Bat Populations HHMI BioInteractive Video In this video we follow scientists working in Bangladesh as they test fruit bat populations to determine whether they are infected with Nipah virusa potentially deadly virus when passed on to humans. Fruit bats (also called flying foxes) of the genus Pteropus carry a virus called Nipah which can be transmitted to humans and cause severe disease. In Bangladesh the virus causes a disease outbreak almost every year. Dr. Jon Epstein of the EcoHealth Alliance walks us through the evidence that established that bats"
YouTube Link 2016-08-03T16:36Z 267K followers, 512K engagements
"The Origin of Birds HHMI BioInteractive Video In the second film of the Great Transitions trilogy paleontologist Julia Clarke takes us on a journey to uncover the evidence that birds are dinosaurs. The discovery of Archaeopteryx in a quarry in Germany in the early 1860s provided the first clue that birds descended from reptiles. But what kind of reptile In the last [--] years scientists have identified many shared features between birds and two-legged carnivorous dinosaurs called theropods. The film illustrates many of the practices of science including asking important questions formulating"
YouTube Link 2015-02-13T13:23Z 267K followers, 522.1K engagements
"Great Transitions: The Origin of Tetrapods HHMI BioInteractive Video Experience the painstaking search for the fossil of Tiktaalik a fish that illuminates key evolutionary steps in the transition of life from water to land. This biology video gives a glimpse into the exciting world of paleontological discoveries. Watch as University of Chicago paleontologist and award-winning author Neil Shubin provides a first-hand account of the search for Tiktaalik and the evolution of four-legged animals. This video is perfect for science lesson plans of all levels. For more information and related"
YouTube Link 2014-08-26T11:49Z 267K followers, 464.3K engagements
"Malaria Life Cycle Animation: Mosquito Host HHMI BioInteractive Video A mosquito becomes infected with malaria when it bites an infected human. Once inside the mosquito the parasites reproduce in the gut and accumulate in the salivary glands ready to infect another human host with the next bite. Learn how one of the most dangerous mosquito-borne diseases is transmitted with this educational animation on the malaria life cycle. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans For more classroom"
YouTube Link 2014-06-11T14:14Z 263K followers, 587K engagements
"Humans Biodiversity and Habitat Loss HHMI BioInteractive Video This [--] minute video lists human activities and their threats to biodiversity. In the second lecture of the series "Biodiversity in the Age of Humans" Dr. Elizabeth Hadly of Stanford University reveals how human activities have caused the extinctions of many species in the past and the present. Human population growth is driving habitat destruction and climate change both direct threats to biodiversity. Visit the BioInteractive series page for related videos and supporting materials for the classroom:"
YouTube Link 2015-04-08T18:41Z 262K followers, 88.6K engagements
"HHMI Educator Tips BCR-ABL Cancer Protein Structure and Function Mary Wuerth explains how she uses the BCR-ABL Click & Learn to teach the importance of protein structure in understanding how proteins work and how scientists use that knowledge to design drugs to fight cancer"
YouTube Link 2017-06-16T18:36Z 261K followers, [----] engagements
"Photosynthesis: Part 5: Light Reactions HHMI BioInteractive Video This animation provides a detailed look at the chemical processes in the light reactions of photosynthesis. It is appropriate for advanced high school biology through college-level students. The light reactions of photosynthesis transform light energy into chemical energy stored in molecules of ATP and NADPH. Chlorophyll molecules absorb photons of light in two photosystems which are embedded in the thylakoid membrane of the chloroplast. The photons energize electrons in the chlorophyll molecules which drives the electrons"
YouTube Link 2019-01-23T18:42Z 264K followers, 194.2K engagements
"Niche Partitioning and Species Coexistence HHMI BioInteractive video Professor Robert Pringle describes the cutting-edge method of DNA metabarcoding used to reveal how similar animals share resources. One of the big questions in ecology is how do similar animals coexist in the same place. Dr. Robert Pringle and his team are using new technologies to better understand the ways in which three different species of African antelope partition niches within their habitat. To download this film or to find related activities and materials visit HHMI BioInteractive:"
YouTube Link 2015-11-11T19:56Z 262K followers, 223.5K engagements
"Identifying the Key Genes for Regeneration HHMI BioInteractive Video Planarians have an amazing ability to regenerate lost tissues. In this video scientists knock out two different genes in planaria to start to understand how the process worksand they generate animals with two heads and two tails For more information and related materials visit HHMI BioInteractive: https://www.hhmi.org/biointeractive/identifying-key-genes-regeneration"
YouTube Link 2017-11-09T12:31Z 264K followers, 81.2K engagements
"ATP Synthesis HHMI BioInteractive Video This animation shows how the proton gradient across the mitochondrial membrane powers the ATP synthase enzyme to make ATP. It is the fifth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3: Citric Acid Cycle"
YouTube Link 2020-10-05T13:09Z 257K followers, 60.9K engagements
"The Origin of Flight--What Use is Half a Wing HHMI BioInteractive Video Biologist Ken Dial's study of how young birds use their developing wings sheds light on the evolution of flight in birds. At the University of Montanas Flight Lab Ken Dial has been researching the mechanics of bird flight. His experiments with young birds that are learning to fly provide new evidence for how flight might have evolved in a group of feathered theropod dinosaurs. Critics of evolutionary theory had asked Charles Darwin the question what use is half a wing in other words what evolutionary advantage would a"
YouTube Link 2015-11-11T12:50Z 259K followers, 462.6K engagements
"Stone Tool Technology of Our Human Ancestors HHMI BioInteractive Video Stone tools reveal a critical transition in the lives of our early human ancestors. Learn about how technological advances went hand-in-hand with human evolution in this educational video by HHMI BioInteractive. Though tool use is not unique to humans the sophistication of our tools and our degree of reliance upon them is unique and sets us apart from other species. So when did human tool-making begin and why And what does it tell us about the evolution of our ancestors Paleoanthropologist Tim White reveals the answers in"
YouTube Link 2015-03-27T16:31Z 258K followers, 307.6K engagements
"Moth Mimicry: Using Ultrasound to Avoid Bats HHMI BioInteractive Video This video follows scientists as they uncover the ways in which moth species in Gorongosa National Park use ultrasound to avoid being eaten by bats. Jesse Barber of Boise State University headed to Gorongosa National Park with two graduate students to study bat-moth predator-prey interactions. They design several experiments to determine the strategies that have evolved in these Gorongosa moths to avoid being eaten by bats. The strategies involve the use of ultrasound to either jam bats sonars or to signal to bats that"
YouTube Link 2016-05-10T10:28Z 258K followers, 112.9K engagements
"Think Like a Scientist--Natural Selection in an Outbreak HHMI BioInteractive The tragic [--------] Ebola outbreak in west Africa shocked the world. In this episode of Think Like a Scientist computational genetiicist Pardis Sabeti and disease ecologist Lina Moses bring us to the front line of the epidemic and explain the science behind how this event became the largest ebola outbreak in history. This film was produced by Day's Edge Productions for HHMI BioInteractive and Nautilus Magazine. Check out the full story here: nautil.us/issue/41/selection/natural-selection-in-an-outbreak"
YouTube Link 2016-12-07T14:16Z 258K followers, 138.6K engagements
"The Icefish Has Clear Blood HHMI BioInteractive Video See clear blood run through the veins of the icefish a demonstration of the process of natural selection. This video uses the Antarctic icefish as an excellent case study for genetic evolution and is perfect for all science classes. See how these amazing fish avoid freezing in the icy ocean. Genetic changes enable icefish to thrive without hemoglobin and red blood cells. Natural selection has resulted in the birth of new genes and the death of old ones. Free classroom resources supporting this short film can be found at"
YouTube Link 2023-10-23T11:53Z 239K followers, 213K engagements
"Malaria Life Cycle Animation: Human Host HHMI BioInteractive Video When a mosquito carrying the malaria parasite bites a human host the parasite enters the bloodstream multiplies in the liver cells and is released back into the bloodstream. Experience the malaria life cycle in this animated video. How do you get malaria Is the disease contagious Answer these questions and more by watching this stunning animation on the mosquito-borne disease malaria. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans"
YouTube Link 2014-06-12T12:21Z 262K followers, 163.8K engagements
"Steve Palumbi and Megan Morikawa Study Coral Reef Damage in American Samoa Can damage to coral reefs be repaired This HHMI BioInteractive video follows two researchers as they look for solutions to a growing problem. Steve Palumbi has been doing research on the corals around Ofu Island in American Samoa for years. He is trying to determine why these native corals can withstand ocean temperatures that in other coral species would lead to coral bleaching. Along with graduate student Megan Morikawa Palumbi is testing whether these heat-resistant corals can be transplanted to reefs that have been"
YouTube Link 2015-03-26T13:47Z 253K followers, 100K engagements
"From Dog DNA to Human Diseases HHMI BioInteractive Video This video follows biologist Elinor Karlsson who studies dogs to find genes associated with traits including certain diseases. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/dog-dna-human-diseases howard hughes medical institute hhmi biointeractive dogs genetics SNPs GWAS artificial selection cancer osteosarcoma howard hughes medical institute hhmi biointeractive dogs genetics SNPs GWAS artificial selection cancer osteosarcoma"
YouTube Link 2023-06-01T22:47Z 267K followers, 10.6K engagements
"Zebrafish Heart Regeneration HHMI BioInteractive video The zebrafish heart is similar to the human heart in many respects. But unlike the human heart the fish heart closes wounds rapidly and then regenerates to nearly full function. When the zebrafish heart is damaged the wound site is rapidly sealed with a fibrin clot that stems bleeding within seconds. Following clot formation the tissue that surrounds the heart musclethe epicardiumgradually covers the fibrin clot via migration and cell division. Over the next few months new cardiac muscle is produced and replaces the clot. Growth factors"
YouTube Link 2017-05-17T19:17Z 258K followers, 30.5K engagements
"Studying Elephant Communication HHMI BioInteractive Video Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. Scientists are studying whether elephants can hear and interpret these ground vibrations. For decades ecologist Caitlin O'Connell-Rodwell has been studying elephant communication in Etosha National Park in northern Namibia. A research associate at Stanford University School of Medicine O'Connell-Rodwell observed that elephants seem to detect vibrations in the ground with their feet and trunk. In this video we"
YouTube Link 2017-02-16T13:40Z 258K followers, 166.2K engagements
"The Science of Climate Change HHMI BioInteractive Video Floods heat waves droughts and megafires: all are phenomena linked to Earths changing climate. People hear about climate change all the time but how well do they know the evidence This film begins with phenomena linked to climate change and then examines how Earths temperature is controlled how we know it is changing and how the current changes compare to those over the last [------] years. Along the way we meet scientists working at the forefront of climate change: fire scientist Crystal Kolden soil scientist Asmeret Asefaw Berhe"
YouTube Link 2021-11-15T20:45Z 261K followers, 124.8K engagements
"HIV Origins in Africa HHMI BioInteractive Video How did HIV originally spread to the human population This video clip from Dr. Beatrice Hahn describes the evidence. Use this educational resource to give students the history of HIV's origins. From the [----] Holiday Lectures noted HIV researcher and HHMI Investigator Dr. Bruce Walker introduces a video clip of Dr. Beatrice Hahn of the University of Alabama-Birmingham where she describes the genetic evidence of how HIV spread to human populations in Africa tracing its route across the continent. Download this clip and find more educational"
YouTube Link 2014-10-31T14:29Z 261K followers, 11.1K engagements
"Grandes Transiciones: El Origen de las Aves HHMI BioInteractive Video En este segundo cortometraje de la triloga Grandes Transiciones la paleontloga Julia Clarke nos presenta la evidencia de que las aves descendieron de los dinosaurios"
YouTube Link 2016-03-14T16:53Z 266K followers, 759.4K engagements
"The Pregnancy Test and the Frog HHMI Biointeractive Video This video tells the surprising story of how the African clawed frog became a popular pregnancy test from the 1930s to the 1960s. It also discusses the science behind modern pregnancy tests. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/pregnancy-test-frog howard hughes medical institute hhmi biointeractive xenopus pregnancy enzyme-linked immunosorbent assay ELISA human chorionic gonadotropin hCG howard hughes medical institute hhmi biointeractive xenopus"
YouTube Link 2026-01-22T16:19Z 267K followers, [----] engagements
"Sickle Cell: Natural Selection in Humans HHMI BioInteractive Video This film explores the evolutionary connection between an infectious disease malaria and a genetic condition sickle cell disease. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/sickle-cell-natural-selection-humans"
YouTube Link 2024-01-29T15:14Z 266K followers, 77K engagements
"The Science of Climate Change HHMI BioInteractive Video Floods heat waves droughts and megafires: all are phenomena linked to Earths changing climate. People hear about climate change all the time but how well do they know the evidence This film begins with phenomena linked to climate change and then examines how Earths temperature is controlled how we know it is changing and how the current changes compare to those over the last [------] years. Along the way we meet scientists working at the forefront of climate change: fire scientist Crystal Kolden soil scientist Asmeret Asefaw Berhe"
YouTube Link 2025-08-20T19:23Z 267K followers, [----] engagements
"Citric Acid Cycle HHMI BioInteractive Video This animation shows the reactions of the citric acid cycle which splits off carbon atoms and generates energy-rich reduced forms of cofactor molecules. It is the third of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3:"
YouTube Link 2023-06-01T22:47Z 267K followers, 31.6K engagements
"Biology of SARS-CoV-2: Evolution HHMI BioInteractive Video This animation describes how coronaviruses like SARS-CoV-2 evolve and discusses positive negative and neutral mutations. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To download"
YouTube Link 2020-08-28T13:41Z 266K followers, 34K engagements
"Biology of SARS-CoV-2: Infection HHMI BioInteractive Video This animation describes the structure of coronaviruses like SARS-CoV-2 and how they infect humans and replicate inside cells. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To"
YouTube Link 2020-08-28T13:41Z 266K followers, 77.1K engagements
"The Evolution of Lactose Tolerance HHMI BioInteractive Video All adult mammals but humans are lactose intolerant. Follow human geneticist Spencer Wells director of the Genographic Project of the National Geographic Society as he tracks down the genetic and societal changes associated with the ability to digest lactose as adultsor lactose tolerance. Explore how evolutionary biology and cultural changes led to the evolution of lactose tolerance in this educational video. Free teaching resources supporting this short film can be found at"
YouTube Link 2014-08-26T11:49Z 266K followers, 838K engagements
"Biology of SARS-CoV-2: Detection HHMI BioInteractive Video This animation describes the methods used to detect active and past SARS-CoV-2 infections. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Vaccination https://youtu.be/fKwcOrE4f20 To download these animations and discover"
YouTube Link 2021-11-08T21:12Z 266K followers, 13.2K engagements
"What is CRISPR HHMI BioInteractive Video Scientists who are using CRISPR for basic research medical and agricultural applications share their excitement for this revolutionary technology. Explore CRISPR at: http://www.BioInteractive.org/CRISPR"
YouTube Link 2018-04-12T21:52Z 264K followers, [----] engagements
"The Science of an Extreme Animal Athlete HHMI BioInteractive Video Biologist Shane Campbell-Staton studies how deer mice living on mountaintops stay warm and active. In this video Campbell-Staton teams up with two colleagues who also happen to be long-distance runners to investigate the adaptations that allow some mice to survive long harsh winters at high elevations. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/science-extreme-animal-athlete"
YouTube Link 2020-02-27T18:38Z 266K followers, 146.2K engagements
"HHMI Educator Tips Trophic Cascades Tim Guilfoyle describes how he uses the film and a claim-evidence-reasoning activity to have his students examine Dr. Paine's starfish exclusion experiment"
YouTube Link 2018-03-07T14:23Z 265K followers, 27.4K engagements
"Photosynthesis: Part 2: Chemical Process HHMI BioInteractive Video This animation summarizes the overall chemical process of photosynthesis. It is appropriate for middle school through college-level students. Photosynthesis is a set of chemical reactions that converts light energy into chemical energy. When the photosystems absorb energy from light they strip away the electrons from water molecules. These high-energy electrons are eventually transferred to the carbons in carbon dioxide molecules to make carbohydrates such as G3P (glyceraldehyde 3-phosphate). Producers use carbohydrates to"
YouTube Link 2019-01-23T18:42Z 265K followers, 53.2K engagements
"Comparing Model Types Professor Kasey Christopher introduces the three types of models - conceptual causal and stock and flow - that you can create in Model Builder and explains when you might want to use each. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classroom-resources/model-builder howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive"
YouTube Link 2025-12-18T16:36Z 267K followers, [---] engagements
"Interpreting Causal Arrows Educator Amit Morris provides an in-depth look at causal models and support for helping students understand what the positive and negative connectors in these models mean. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classr. howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive"
YouTube Link 2025-12-18T16:37Z 267K followers, [---] engagements
"Introduction to Model Builder Professor Kasey Christopher provides an introduction to Model Builder and its key features including self-check models custom models created by students or educators and the built-in grading tool. Youll also get an overview of the resources available to support you as you get started with Model Builder along with practical tips for classroom use. For more Model Builder resources go to the BioInteractive website: https://www.biointeractive.org/classroom-resources/model-builder howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi"
YouTube Link 2025-12-18T16:36Z 267K followers, [---] engagements
"How Lizards Are Changing in Cities HHMI BioInteractive Video This film follows a team of scientists in Puerto Rico investigating if and how anole lizards are adjusting to urban environments. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/how-lizards-changing-cities howard hughes medical institute hhmi biointeractive anole evolution natural selection plasticity urban ecology howard hughes medical institute hhmi biointeractive anole evolution natural selection plasticity urban ecology"
YouTube Link 2026-01-22T16:19Z 267K followers, [----] engagements
"Photosynthesis HHMI BioInteractive Video This animation explores the process of photosynthesis and the structures that carry it out. Photosynthesis converts light energy from the sun into chemical energy stored in organic molecules which are used to build the cells of many producers and ultimately fuel ecosystems. After providing an overview of photosynthesis the animation zooms inside the cells of a leaf and into a chloroplast to see where and how the reactions of photosynthesis happen. The animation details both the light reactions and the Calvin cycle focusing on the flow of energy and the"
YouTube Link 2019-09-16T13:29Z 265K followers, 219.2K engagements
"Biology of SARS-CoV-2: Vaccination HHMI BioInteractive Video This animation describes the different types of vaccinations and how they prevent disease. To view the rest of this series on SARS-CoV-2 go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gNvqJxIJewcQYmSOKE-MimD To view the other three animations in the series use the following links: Biology of SARS-CoV-2: Infection https://youtu.be/LoVJCx6XXMM Biology of SARS-CoV-2: Evolution https://youtu.be/JmJIF47_f1s Biology of SARS-CoV-2: Detection https://youtu.be/QqQL9uyThKw To download these animations and discover"
YouTube Link 2021-06-28T17:01Z 266K followers, 15.9K engagements
"Clulas falciformes: seleccin natural en humanos Video HHMI BioInteractive Esta pelcula explora la conexin evolutiva entre una enfermedad infecciosa la malaria y una condicin gentica la anemia falciforme. Encuentra ms informacin y recursos asociados con este video visitando el sitio web de BioInteractive: https://www.biointeractive.org/es/classroom-resources/celulas-falciformes-seleccion-natural-en-humanos howard hughes medical institute hhmi biointeractive anemia falciforme malaria evolucin humana hematologa hemoglobina howard hughes medical institute hhmi biointeractive anemia falciforme"
YouTube Link 2026-01-22T16:22Z 267K followers, [----] engagements
"Tim White on the Intersection of Anthropology and Paleontology HHMI BioInteractive Video Paleoanthropologist Tim White discusses how his team unearthed the fossil of Ardipithecus ramidus an early hominid that lived about [---] million years ago. In this classroom-ready science video Dr. White discusses the fossil record and what it reveals about hominid evolution. For more information about this discovery visit the BioInteractive website at http://www.hhmi.org/biointeractive/hominid-paleobiology"
YouTube Link 2014-04-24T14:18Z 265K followers, 16.8K engagements
"Estall el Secreto: El Misterioso Origen del Maz HHMI BioInteractive Video De dnde vino el maz Evidencia gentica y arqueolgica apunta a lo que parecera ser un ancestro poco probable: un pasto silvestre de Mxico llamado teosinte. Conoce ms sobre este video y descubre actividades educativas gratuitas en nuestra pgina web. https://www.biointeractive.org/es/classroom-resources/estall-el-secreto-el-misterioso-origen-del-maz"
YouTube Link 2016-07-08T18:17Z 266K followers, 6.5M engagements
"In a Minute Science: The Search for a Mutated Gene To design gene therapies for a specific disorder researchers must first locate the gene that causes this disorder. Find out more at: http://bit.ly/SaWRP"
YouTube Link 2018-01-12T20:46Z 264K followers, [----] engagements
"Sickle Cell: Natural Selection in Humans HHMI BioInteractive Video This film explores the evolutionary connection between an infectious disease malaria and a genetic condition sickle cell disease. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/sickle-cell-natural-selection-humans howard hughes medical institute hhmi biointeractive sickle cell disease malaria human evolution hematology hemoglobin howard hughes medical institute hhmi biointeractive sickle cell disease malaria human evolution hematology hemoglobin"
YouTube Link 2026-01-22T16:25Z 267K followers, 21.7K engagements
"From Ants to Grizzlies: A General Rule for Saving Biodiversity HHMI BioInteractive Video This film explores the species-area relationship a general ecological rule that describes how the number of species in a habitat changes with area and shows how it has been applied to the conservation of protected areas. Habitats are shrinking and becoming more fragmented due to human activities leading to the loss of many species. One tool that scientists are using to conserve Earth's remaining biodiversity is the species-area relationship. The film begins with the story of ant biologist E. O. Wilson who"
YouTube Link 2019-06-10T15:15Z 266K followers, 199.4K engagements
"Fotosntesis Video HHMI BioInteractive Esta animacin explora el proceso de la fotosntesis y las estructuras que lo llevan a cabo. La fotosntesis convierte la energa lumnica del sol en energa qumica almacenada en molculas orgnicas que se usan para formar las clulas de muchos productores y en ltima instancia alimentar los ecosistemas. Luego de proveer una introduccin sobre la fotosntesis la animacin se adentra a las clulas de una hoja y de un cloroplasto para ver dnde y cmo se llevan a cabo las reacciones de la fotosntesis. Esta animacin detalla las reacciones luminosas y el ciclo de Calvin"
YouTube Link 2020-09-17T17:50Z 266K followers, 490.7K engagements
"ATP in Use HHMI BioInteractive Video This animation shows two examples of how the cell uses energy from ATP: calcium ion pumps and DNA helicase. It is the sixth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate Dehydrogenase https://youtu.be/rSPUYA3gWK8 Part 3: Citric Acid Cycle https://youtu.be/IlSFn0gRyC4 Part 4:"
YouTube Link 2021-07-12T15:44Z 266K followers, 64.9K engagements
"Liz Hadly Tracks the Impact of Climate Change in Yellowstone Elizabeth Hadly has been studying biodiversity in Yellowstone National Park for [--] years. Accompanied by biologist Sean Carroll she demonstrates different ways in which climate change is impacting the parks ecosystems. Use this in the classroom as a real-world example of food webs and how they can be disrupted. Find out more about this and other topics on the BioInteractive website: http://www.hhmi.org/biointeractive/biodiversity-age-humans"
YouTube Link 2014-11-19T19:00Z 266K followers, 108.6K engagements
"Convergent Evolution of Lizards HHMI BioInteractive Video Species of anole lizards with similar body types and adaptations have evolved again and again on each of the four larger Caribbean islands: Puerto Rico Jamaica Cuba and Hispaniola. Hear Harvard University biologist Jonathan Losos describe this compelling example of convergent evolution. This classroom-ready video is perfect for science students learning about evolution and the effects of changing habitats. For more lesson plan resources on anole lizards and speciation see our playlist at"
YouTube Link 2014-05-30T00:38Z 267K followers, 22.8K engagements
"Life Cycle of the Dengue Fever Virus HHMI BioInteractive Video What is dengue virus and how does it infect a host Learn the life cycle of this dangerous virus through this educational animation. The dengue virus has sophisticated mechanisms for entering a cell for replicating its RNA genome and for translating its proteins. Learn the specifics about this dangerous pathogen and how it spreads. Free teaching resources supporting this short film can be found at http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans For more classroom resources on mosquito-borne diseases see"
YouTube Link 2014-06-11T14:14Z 267K followers, 356.5K engagements
"Biology of Oxygen howard hughes medical institute hhmi biointeractive howard hughes medical institute hhmi biointeractive"
YouTube Link 2025-01-13T20:06Z 267K followers, [----] engagements
"The Life of Alfred Russel Wallace HHMI BioInteractive Video Entertain your science classroom with a paper-cut animation video tracking the theory of evolution as formulated by Alfred Russel Wallace. Wallace independently formulated his theory of evolution by natural selection at the same time as Charles Darwin. This fun video animates Wallaces life from his boyhood in England to his voyages with Henry Walter Bates and his later adventures in the Malay Archipelago. Learn about one of the founders of natural selection and the theory of evolution in this video perfect for high school biology"
YouTube Link 2014-04-07T12:23Z 267K followers, 63.9K engagements
"HHMI Educator Tips Pedigree Analysis Activity Jackie Washington of Nyack College describes how she uses the HHMI BioInteractive pedigree analysis activity in conjunction with the Learning From Patients Holiday Lecture to teach Mendelian genetics to her students. For more resources or to stream or download the lectures go to http://www.hhmi.org/biointeractive/pedigree-analysis howard hughes medical institute hhmi biointeractive pedigree pedigree analysis genomic testing genetic disease howard hughes medical institute hhmi biointeractive pedigree pedigree analysis genomic testing genetic disease"
YouTube Link 2016-10-19T18:57Z 267K followers, [----] engagements
"Tracking Lion Recovery in Gorongosa National Park HHMI BioInteractive See how scientists in Gorongosa National Park are using GPS satellite collars and motion-sensitive cameras to gather data about the recovery of the parks lion population. Gorongosa National Park was once famous for its lion population attracting tourists from all over the world. But during Mozambiques struggle for independence and subsequent civil war the parks iconic wildlife was slaughtered. In [----] a massive ecosystem restoration project began. Today many animals are bouncing back in large numbers but its unclear if the"
YouTube Link 2015-08-06T14:28Z 267K followers, 117.8K engagements
"Trophic Cascades in Salt Marsh Ecosystems HHMI BioInteractive Video Ecologist Brian Silliman uses manipulative field experiments to reveal that salt marsh ecosystems are under top down control from consumers and predators. For more information and related materials visit HHMI BioInteractive: https://www.biointeractive.org/classroom-resources/trophic-cascades-salt-marsh-ecosystems howard hughes medical institute hhmi biointeractive salt marshes snails blue crabs ecology trophic cascades silliman howard hughes medical institute hhmi biointeractive salt marshes snails blue crabs ecology trophic"
YouTube Link 2017-05-15T18:17Z 267K followers, 132.7K engagements
"Where Do Our Opposable Thumbs Come From HHMI BioInteractive Video Our opposable thumbs evolved from the hand structure of ancient primates. This instructional classroom video explores the human evolution timeline through our hands. The fossil of Notharctus a tree-dwelling animal sheds light on the evolution of early primates and human anatomy. One of the earliest examples in the fossil record of a creature with bones similar to human hand bones Notharctus opens a window onto the evolution of opposable thumbs. For more videos on human evolution see our evolution playlist at"
YouTube Link 2014-04-24T14:18Z 267K followers, 52.9K engagements
"The Search for a Mutated Gene HHMI BioInteractive Video How do you identify the disease-causing mutation in a patient with an inherited disease This video illustrates the steps involvedtesting for genes that are the usual suspects searching for mutations in novel genes and assessing links between genotype and phenotype. Just before his sophomore year in college Sam Walker was diagnosed with retinitis pigmentosa (RP) a progressive disease that leads to blindness. It can be caused by mutations in one of over a hundred known genes. We all carry mutations in our genes but most of those mutations"
YouTube Link 2017-12-19T16:48Z 267K followers, 68.7K engagements
"Electron Transport Chain HHMI BioInteractive Video This animation shows how the enzyme complexes of the electron transport chain harvest energy from cofactor molecules to pump protons across the mitochondrial membrane and establish a chemical gradient. It is the fourth of six animations about cellular respiration. To view the rest of this series on cellular respiration go to the full playlist at: https://www.youtube.com/playlistlist=PLI1XjFOSo4gOymAvlRs_8sSUH1BKKUiDA To view a specific part of the series use the following links: Part 1: Glycolysis https://youtu.be/BO0zL03CtDs Part 2: Pyruvate"
YouTube Link 2020-10-05T13:09Z 267K followers, 49.2K engagements
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