David Quammen's books include Breathless, The Tangled Tree, The Song of the Dodo, The Reluctant Mr. Darwin, and Spillover. He has written for The New Yorker, Harper's Magazine, The Atlantic, National Geographic, and Outside, among other magazines, and is a three-time winner of the National Magazine Award. Quammen shares a home in Bozeman, Montana, with his wife, Betsy Gaines Quammen, author of American Zion, and with three Russian wolfhounds, a cross-eyed cat, and a rescue python. Visit him at DavidQuammen.com.