Written by world-renowned behaviorist Sue McDonnell, Ph.D., The Equid Ethogram provides the first comprehensive catalog of horse behaviors, providing an invaluable reference for researchers, veterinarians, students, and horse enthusiasts. This landmark work organizes horse behavior in six categories: maintenance behavior, general social communication, intermale interaction, reproductive behavior, play, and domestically shaped and aberrant behavior. The specific behaviors in each category are identified, described, and illustrated with original line drawings in a user-friendly format. The Equid Ethogram also contains more than 500 photographs of hundreds of behaviors. In addition to horses, The Equid Ethogram recognizes behaviors in zebra, donkeys, and Przewalski horses. The Equid Ethogram provides fascinating insight into how horses behave in their natural environments and their tremendous ability to conform to the demands of humans.