Why do animals play? Play has been described in animals as diverse as reptiles, birds and mammals, so what benefits does it provide and how did it evolve? Careful, quantitative studies of social, locomotor and object play behaviour are now beginning to answer these questions and to shed light on many other aspects of both animal and human behaviour. This interdisciplinary volume, first published in 1998, brings together the major findings about play in a wide range of species including humans. Topics about play include the evolutionary history of play, play structure, function and development, and sex and individual differences. Animal Play is destined to become the benchmark volume in this subject, and will provide a source of inspiration and understanding for students and researchers in behavioural biology, neurobiology, psychology and anthropology.

Why do animals play? Play has been described in animals as diverse as reptiles, birds and mammals, so what benefits does it provide and how did it evolve? Careful, quantitative studies of social, locomotor and object play behavior are now beginning to answer these questions and shed light on many other aspects of both animal and human behavior. This unique interdisciplinary volume brings together the major findings about play in a wide range of species including humans. Topics about play include the evolutionary history of play, play structure, function and development, and sex and individual differences. Animal Play is destined to become the benchmark volume in this subject for many years to come, and will provide a source of inspiration and understanding for students and researchers in behavioral biology, neurobiology, psychology and anthropology.

A short introduction to animal behaviour, investigating a whole host of species from around the globe. Drawing together evolutionary theory, ecology, population biology, genetics, and physiology and anatomy, it explains the mechanisms and motivations behind a range of animal movements.

North America's fastest mammal, the pronghorn can accelerate explosively from a standing start to a top speed of 60 miles per hour-but it can also cruise at 45 miles per hour for many miles. What accounts for the speed of this extraordinary animal, a denizen of the American outback, and what can be observed of this creature's way of life? And what is it like to be a field biologist dedicating twenty years to studying this species? In Built for Speed, John A. Byers answers these questions as he draws an intimate portrait of the most charismatic resident of the American Great Plains. The National Bison Range in western Montana, established in 1908 to snatch bison from the brink of extinction, also inadvertently rescued the largest known remnant of Palouse Prairie. It is within this grassland habitat-home to meadowlarks, rattlesnakes, bighorn sheep, coyotes, elk, snipe, and a panoply of wildflowers-that Byers observes the pronghorn's life from birth to death (a life often as brief as four days, sometimes as long as fifteen years) and from season to season. Readers will also experience the vicarious pleasures of a biologist who is eager to race a pronghorn in his truck, scrutinize bison dung through binoculars, and peer through the gathering dusk of a rainy evening to count the display dives of snipe. A vivid and memorable tale of a first-rate scientist's twenty-year encounter with a magnificent animal, the story of the pronghorn is also a reminder of the crucial role we can play in preserving the fleeting life of the native American grassland.