Robert M. Sapolsky holds degrees from Harvard and Rockefeller Universities and is currently a Professor of Biology and Neurology at Stanford University and a Research Associate with the Institute of Primate Research, National Museums of Kenya.

He is the author of The Trouble with Testosterone, Why Zebras Don't Get Ulcers (both finalists for the LA Times Book Award), and A Primate's Memoir. Sapolsky has contributed to Natural History, Discover, Men's Health, and Scientific American, and is a recipient of a MacArthur Foundation genius grant.