John Byers is Professor of Zoology at the University of Idaho. He was educated at Swarthmore College, West Virginia University, and the University of Colorado. His long-term study of pronghorn, that amazingly speedy American antelope-like creature, began in 1981. He studies pronghorn at the National Bison Range, a beautiful preserve in the southern end of the Flathead Valley in Montana. Byers also has a longstanding interest in the evolution and function of animal play behavior. His first book, American Pronghorn, was awarded the Book of the Year Award by the Wildlife Society. Byers is a Fellow of the Animal Behavior Society and was recently named Exemplar by that Society.