Steven W. Buskirk is Professor Emeritus of Zoology and Physiology at the University of Wyoming. His research has dealt with mammals from mice to bighorn sheep with a special focus on the ecology and conservation of medium-size carnivores and their prey. He has taught courses in wildlife management, mammalogy, and writing in zoology, and he has published articles in Science, the Journal of Mammalogy, and other journals. He coedited the volume Biology and Conservation of Martens, Sables, and Fishers (Cornell, 2012) and contributed to Species at Risk (Texas, 2005).