David Quammen’s books include BreathlessThe Tangled TreeThe Song of the DodoThe Reluctant Mr. Darwin, and Spillover. He has written for The New YorkerHarper’s Magazine, The AtlanticNational 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.