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This video describes how scientists silence different genes in regenerating planaria to study the process of regeneration at the molecular level.

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 a single species can give rise to many different species with distinct traits, using anole lizards as an example.

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 explores four decades of research on the evolution of Galápagos finches, which has illuminated how species form and diversify.

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 animation shows how varying concentrations of a signaling molecule activate different transcription factors to determine cell fate.

This video shows real footage of somatic cell nuclear transfer (SCNT) being performed on eggs.

This animation shows how stem cells from early mammalian embryos can be grown and studied in a laboratory.