National Geographic contributor David Quammen discusses Yellowstone National Park and it's greater ecosystem, and the conflicts between the wildlife, the thousands of visitors who come, and the ranchers who live nearby.
His new book is Monster of God: The Man-Eating Predator in the Jungles of History and the Mind. Heâs also the author of The Song of the Dodo: Island Biogeography in an Age of Extinctions, which received the John Burroughs Medal for natural history writing. Quamman is the author of five nonfiction books, and four books of fiction. Heâs been honored with the Academy Award in Literature from the American Academy of Arts and Letters. He has written for National Geographic, Outside and Harperâs.