DAVID QUAMMEN is an award-winning American science, nature and travel writer. He authored the “Natural Acts” column for Outside magazine for 15 years. His articles have also appeared in National Geographic, Harper’s, Rolling Stone, the New York Times Book Review, and other periodicals, and he has additionally authored 15 books. Quammen’s book Spillover was nominated for the 2013 PEN/E. O. Wilson Literary Science Writing Award. Quammen resides in Bozeman, Montana.