PBS
Nova: Bone Diggers: Anatomy of Thylacoleo
Thylacoleo or the extinct marsupial lion had an unusual array of adaptations that enabled it to be an effective predator. Explore an interactive fossil of the lion to learn more about each of its' adaptations.
PBS
Nova: The Extinction Enigma
45,000 - 50,000 years ago the megafauna of Australia became extinct. This interview investigates several possible causes such as, continental drift, human impact, and climate change.