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Browse results: Evolution and Diversity

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RESOURCE	GRADE LEVEL	MEDIA TYPE
Ancient Farmers of the Amazon This video segment from Evolution: "Evolutionary Arms Race" tells the story of the leafcutter ant and the fungus it farms -- an example of mutually beneficial symbiosis. Accessibility features: Caption	6-12	Video
Animal Defenses In nature, survival is the name of the game. This video segment explores the world of animal defense and shows that predators don't always have the upper hand. Accessibility features: Audio Description, Caption	K-8	Video
Are We Alone? This video segment adapted from NOVA features a variety of scientific perspectives on the age old question, "Are we alone in the universe?" Animations make vivid the improbability that we could intercept a radio wave signaling extra terrestrial intelligence. Accessibility features: Audio Description, Caption	6-12	Video
Becoming a Fossil This video segment describes how the Australopithecus afarensis skeleton known as Lucy could have been fossilized. Footage courtesy of NOVA: "In Search of Human Origins." Accessibility features: Audio Description, Caption, Transcript	6-12	Video
Biological Invaders This video segment from Evolution: "Extinction!" shows the impact of invasive species on native ecosystems. Accessibility features: Caption	9-12	Video
Carnivorous Plants of Cartwheel Bay In this video segment from NatureScene, explore Cartwheel Bay, a wetland in South Carolina, and learn about the variety of carnivorous plants native to this unique landform. Accessibility features: Caption	3-8	Video
Caves: Extreme Conditions for Life This video segment adapted from NOVA raises the provocative idea that if life can exist in the most extreme environments on Earth — such as in dark, toxic caves — then perhaps living things can also survive in harsh environments on other planets. Accessibility features: Audio Description, Caption	6-12	Video
Climate and Human Evolution In this video segment adapted from NOVA: "Becoming Human," learn how the analysis of rock layers and ocean sediments supports the theory that rapid climate change may have jump-started human evolution two million years ago. Accessibility features: Caption	6-12	Video
Comets Bombard the Early Earth Visualize how comets carrying chemicals necessary for life could have made their way to Earth billions of years ago in this video segment adapted from NOVA. Accessibility features: Caption	6-12	Video
Comets Deliver Amino Acids to Earth Amino acids, essential ingredients for life, may have been delivered to Earth by comets billions of years ago, as visualized in this video segment adapted from NOVA. Accessibility features: Caption	6-12	Video
The Common Genetic Code Paul Nurse describes his research that showed that humans share some genes with organisms as different from us as simple brewer's yeast. Footage from Secret of Life: "Immortal Thread." Accessibility features: Caption	9-12	Video
Common Past, Different Paths This time-lapse microphotography of developing embryos shows the common ancestry of all vertebrates. Footage from NOVA: "Odyssey of Life." Accessibility features: Audio Description, Caption	K-8	Video
Darwin: Reluctant Rebel This video segment from Evolution: "Darwin's Dangerous Idea," together with interviews with Daniel Dennett and James Moore, depicts Darwin struggling with publicizing his revolutionary theory. Accessibility features: Caption	9-12	Video
Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi In this video segment adapted from NOVA, scientists search for carbonized remains of plants preserved in lava flows to find out how long it has taken rain forests on Hawaiʻi to regenerate after a volcanic eruption. Accessibility features: Audio Description, Caption	3-12	Video
Decision-Maker Bees and the Human Brain Learn about the similarity between the pattern of communication within a bee colony and neural networks in the human brain, in this video adapted from NOVA scienceNOW. Accessibility features: Caption	6-12	Video
Deep Sea Vents and Life's Origins Deep-sea vents are home to strange, luminescent life forms that thrive through chemosynthesis. This video segment from NOVA: "Volcanoes of the Deep" hypothesizes life's beginnings in this extreme environment. Accessibility features: Audio Description, Caption, Transcript	3-12	Video
Dinosaurs This video segment from IdahoPTV's D4K shows us what paleontologists think dinosaurs looked like, what they ate, and why they might have disappeared. We see paleontologists at work studying dinosaurs fossils. Accessibility features: Caption, Transcript	4-6	Video
Double Immunity Dr. Stephen O'Brien of the National Cancer Institute discovers a 700-year-old mutation that makes a person resistant to HIV infection. From Evolution: "Evolutionary Arms Race." Accessibility features: Caption	9-12	Video
Dragonflies in Kentucky This KET video segment from Kentucky Life explains the differences between dragonflies and damselflies and explores their habitats. Accessibility features: Caption	K-12	Video
Engineering Biofuels In this video segment adapted from KQED's QUEST, find out how synthetic biologists use the techniques of metabolic engineering and directed evolution to make more effective biofuels. Accessibility features: Caption	9-12	Video
Evolutionary Roots of Language This video excerpt from NOVA scienceNOW looks at how language and tool-making may have coevolved. Accessibility features: Caption, Transcript	6-12	Video
Evolution of Camouflage This video segment from Evolution: "Darwin's Dangerous Idea" illustrates the remarkable camouflage of a praying mantis against its leafy backdrop. Accessibility features: Caption, Transcript	3-12	Video
Evolution of the Eye Zoologist Dan-Erik Nilsson demonstrates how the complex human eye could have evolved from simple light-sensitive cells. From Evolution: "Darwin's Dangerous Idea." Accessibility features: Caption	9-12	Video
Evolving Ideas: Did Humans Evolve? This video from Evolution explores the evolution of humans from a common ancestor of humans, chimpanzees, and other apes. Accessibility features: Caption	9-12	Video
Evolving Ideas: How Does Evolution Really Work? The process of evolution through natural selection is the focus of this video segment from Evolution, which presents a field study of hummingbird speciation in Ecuador. Accessibility features: Caption	9-12	Video
Evolving Ideas: How Do We Know Evolution Happens? This video from Evolution focuses on one of the several lines of evidence for evolution -- fossils, highlighting the evolution of whales from land-dwelling mammals to the aquatic creatures we know today. Accessibility features: Caption, Transcript	6-12	Video
Evolving Ideas: Who Was Charles Darwin? This video from Evolution highlights Charles Darwin's personal struggle to bring to light his theory of evolution through natural selection. Accessibility features: Caption	9-12	Video
Evolving Ideas: Why Does Evolution Matter Now? In this video from Evolution, an exploration of multi-drug resistant tuberculosis in the Russian prison system highlights one reason it is important to understand evolution. Accessibility features: Caption	9-12	Video
Finding Lucy This Evolution video segment depicts the landmark hominid fossil finds by Don Johanson and his team in Ethiopia. Accessibility features: Caption	9-12	Video
Fish with Fingers In this video segment from Evolution: "Great Transformations," paleontologist Jenny Clack explains that vertebrates evolved fingers before they invaded land. Accessibility features: Audio Description, Caption, Transcript	6-12	Video
Floral Arrangements Explore a few of the ways plants pollinate each other in this video segment from Sexual Encounters of a Floral Kind. Accessibility features: Audio Description, Caption, Transcript	6-12	Video
Fossil Evidence of Bipedalism This video segment adapted from NOVA shows how scientists use the fossil record to trace when early human ancestors and related species began walking on two legs instead of four, and to determine whether they were more apelike or human in appearance. Accessibility features: Caption	8-12	Video
Fossils This video segment from IdahoPTV's D4K explains how fossils are formed, discusses the Hagerman Horse fossil found in Idaho. It describes the tools Paleontologists use and why they study fossils. Accessibility features: Caption, Transcript	4-6	Video
Frozen Frogs This video segment adapted from NOVA scienceNOW shows how the common wood frog freezes solid every winter, an adaptation that allows the organism to survive the cold winter. Accessibility features: Caption	6-12	Video
Genetically Engineering the Avian Flu In this video segment adapted from NOVA scienceNOW, learn about a radical biotechnology experiment aimed at figuring out how to stop the avian flu virus. Accessibility features: Caption	9-12	Video
Geneticist Pardis Sabeti In this video profile adapted from NOVA scienceNOW, learn about geneticist and rock musician Pardis Sabeti, whose innovative insights into natural selection demonstrated how beneficial mutations spread quickly through a population. Accessibility features: Caption	6-12	Video
Genetic Tool Kit The shared set of genes for body segments, possessed by all animals, are discussed in this video segment from Evolution: "Great Transformations." Accessibility features: Caption	6-12	Video
Genetic Variation This video segment from NOVA: "Cracking the Code of Life" explores the genetic similarities and differences among organisms. Accessibility features: Caption	9-12	Video
HIV Immunity Although repeatedly exposed to HIV, Steve Crohn's blood cells were never infected. Dr. David Ho investigates in this video segment from NOVA: "Surviving AIDS." Accessibility features: Caption	9-12	Video
Homo Sapiens Versus Neanderthals This video segment, adapted from NOVA, explores reasons why Homo sapiens had an advantage over Neanderthals in the pursuit of territory and natural resources. Accessibility features: Caption	6-12	Video
Human Chromosome 2 In this video segment adapted from NOVA: "Judgment Day: Intelligent Design on Trial," learn how modern genetics and molecular biology offer compelling support for evolution. The video features an interview with biologist Ken Miller. Accessibility features: Caption	6-12	Video
Hummingbird Species in the Transitional Zones This video segment from Evolution: "Darwin's Dangerous Idea" shows biologists Chris Schneider and Tom Smith studying hummingbirds and other animals in Ecuador. Their research is investigating the processes by which new species are formed. Accessibility features: Caption	9-12	Video
Ingredients for Life: Carbon This video segment adapted from NOVA illustrates why carbon is at the center of life on Earth. It also asks whether carbon-based life might exist on other planets. Accessibility features: Audio Description, Caption	6-12	Video
Ingredients for Life: Water This video segment adapted from NOVA goes on a whimsical journey in search of life forms thriving in extreme conditions on Earth and in outer space. Animations show ice on Jupiter's moon, Europa, and signs that water once existed on Mars. Accessibility features: Audio Description, Caption	3-12	Video
Investigating Neanderthals This video excerpt from NOVA scienceNOW looks at how head shapes of Neanderthals and modern humans differ. Accessibility features: Caption, Transcript	6-12	Video
Killer Microbe Learn how biotechnology is used to analyze the evolution of a formerly harmless bacterium into a highly drug-resistant and lethal pathogen in this video segment adapted from NOVA scienceNOW. Accessibility features: Caption	9-12	Video
Laetoli Footprints This Evolution video segment describes how the famous track fossils known as the Laetoli footprints might have been formed and what they can reveal about the creatures who left them. Accessibility features: Caption, Transcript	6-12	Video
Leafy Spurge This video segment from Evolution: "Extinction!" shows how biological control is successfully combating North Dakota's infestation of leafy spurge, a non-native plant. Accessibility features: Caption	9-12	Video
Life Before Oxygen This Interactive NOVA: "Earth" video segment looks at ancient organisms that lived anaerobically, the origins of photosynthesis, and the new forms of life this process made possible. Accessibility features: Caption	3-12	Video
Life in the Deep Learn about some strange creatures that inhabit the deep oceans, including transparent sea cucumbers and oil eating tube worms, in this audio segment from PRI's The World Science Podcast. Accessibility features: Caption	9-12	Audio