Steven Monroe Lipkin, MD, PhD, FACMG, has been a practicing clinical geneticist for almost twenty years. He directs the Adult and Cancer Genetics Clinic and is the vice chair for Translational Research at the Sanford I. and Joan Weill Department of Medicine at Weill Cornell in New York City.

Jon R. Luoma’s writing about science and the environment has appeared in National Geographic, GQ, the New York Times Sunday Magazine, and Audubon, where he was a longtime contributing editor. He is the author of three previous nonfiction books: The Hidden Forest, A Crowded Ark, and Troubled Skies, Troubled Waters.