A prairie dog is a type of small furry animal that lives underground in the prairies of North America. Any of several burrowing rodents of the genus Cynomys in the squirrel family, having light brown fur and a warning call that sounds similar to a dog's bark. The prairie dog lives in large colonies, chiefly in the Great Plains of North America. a small animal with a short tail, which lives in holes on the prairies. Any of five species (genus Cynomys) of short-legged, terrestrial squirrels, named for their barklike call. Once abundant throughout the plains of the western U.S., part of southern Canada, and northern Mexico, they are now found mostly in isolated or protected areas. They are 12-17 in. (30-43 cm) long, including a 1-5-in. (3-12-cm) tail. Their main diet is grass. Colonies consist of well-defined territories defended by a male, several females, and young. The burrows of the black-tailed prairie dog have carefully tended funnel-shaped entry mounds that prevent flooding and serve as lookout posts. The white-tailed prairie dog inhabits higher altitudes, hibernates, and is less colonial