Extinction (Biology)
Photographer Builds A 'Photo Ark' For 6,500 Animal Species And Counting
National Geographic photographer Joel Sartore is documenting the world's captive animal species. His new book is Vanishing: The World's Most Vulnerable Animals. Originally broadcast Feb. 27, 2017.
In The World's 'Sixth Extinction,' Are Humans The Asteroid?
Scientists think an asteroid killed the dinosaurs. In today's extinction, humans are the culprit. Originally broadcast Feb. 12, 2014.
How Islands Foster Evolutionary Experimentation
Science writer David Quammen's new book is "The Song of the Dodo: Island Biogeography in an Age of Extinctions" (Scribner). During his eight years of research, Quammen studied the biogeography of islands around the world. His travels introduced him to plants and animals previously unimagined. Quammen is a two-time recipient of the National Magazine Award for his science essays and other work in Outside magazine.