This reference and guidebook offers illustrations, descriptions, and measurements for the skulls of some 275 animal species found throughout North America. The skull is the key anatomical feature used to identify an animal and understand many of its behaviors. This book describes in words and pictures the bones and regions of the skull important to identification, including illustrations of all the bones in the cranium, leading to a greater understanding of a creature's place in the natural world. With life-size drawings, this guide is a reference for wildlife professionals, trackers, and animal-lovers.