Exploring the full range of animal behavior studies, this authoritative Handbook covers the current state of the art as well as important historical developments in the field since its beginnings over a century ago. It features original essays by comparative psychologists and other animal behavior researchers on the latest information and discoveries in the areas of evolution, development, and species-typical behavior. Ideal as a sourcebook for students in comparative psychology, ethology, sociobiology, anthropology, and evolutionary psychology, this Handbook is also a handy reference for scientists working in these fields and for the layperson who better wants to understand animal behavior.