This popular quick reference is back with the latest updated information available. True to earlier adoptions, Houpt maintains organization by common types of behaviour and addresses advances in communication, perception, cognition and clinical behaviour. Key to the fourth edition is advancements in the use of psychotropic drugs and the role of underlying disease in some behaviour problems. Also new to this edition are discussions of progress and research in understanding equine and production animal behaviour, and the relationship between behaviour and animal welfare. The text provides: physiological basis and development for each type of behaviour; normal and aberrant manifestations in each domestic animal species, including horses and farm animals; treatments for problem situations; and consideration of the effects of domestication on each species. This text is intended for animal science and veterinary students and includes a glossary of medical terms, illustrations of anatomy and behaviour, and over 1500 classical and contemporary references.