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This video follows scientists working in Bangladesh as they test fruit bat populations to determine whether they are infected with Nipah virus, a potentially deadly human pathogen.

This film explores what our hair, teeth, and hearing reveal about our evolution from ancient reptilian ancestors.

This film explores how the genetic and anatomical legacy of a fish can be seen today in the human body.

This video shows the reactions of first-grade students to a replica of a Tiktaalik fossil.

This animation shows how disrupting cellular processes in the intestines can lead to colon cancer.

This film explores the adaptation of anole lizards (genus Anolis) to habitats common across the islands of the Caribbean. The anoles are excellent examples of adaptive radiation, convergent evolution, and speciation through reproductive isolation.

This film tells the story of the scientific quest to explain one of the greatest, long-standing scientific mysteries: the sudden disappearance of the dinosaurs at the end of the Cretaceous period.

This film explores how gene duplications and mutations have led to remarkable physiological adaptations in Antarctic fish.

This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest.

This film explores the genetics and evolution of lactase persistence in humans.

This animation shows how a mutation that allows adult humans to digest milk can be lost or spread under different circumstances.

This animation shows how human infants can digest milk using the enzyme lactase.