Download or read book American Pronghorn written by John A. Byers and published by University of Chicago Press. This book was released on 1997 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the behavior of American pronghorn antelope--which exhibit certain unexplainable "defense" characteristics--zoologist John A. Byers theorizes the animals' mystifying behaviors evolved in response to dangerous predators of their ancient past. Byers's provocative hypothesis suggests that other species' adaptations also are haunted by ghosts of predators past. 41 photos. 111 line drawings.