Black-tailed prairie dog Black-tailed prairie dog The black-tailed prairie dog ("Cynomys ludovicianus") is a rodent of the family Sciuridae found in the Great Plains of North America from about the United States-Canada border to the United States-Mexico border. Unlike some other prairie dogs, these animals do not truly hibernate. The black-tailed prairie dog can be seen above ground in midwinter. A black-tailed prairie dog town in Texas was reported to cover and included 400,000,000 individuals. Prior to habitat destruction, this species may have been the most abundant prairie dog in central North America. This species was one of two described by the Lewis
Breed type (dog) very ancient or modern in origin. "Modern breeds of dogs" are refinements of older dog types, bred so that all closely resemble each other, and documented in a stud book kept by a breed club or major dog registry. A "purebred dog" is a dog of a documented modern dog breed that has been selectively bred to emphasize "breed type" for the sport of competitive conformation dog showing. The word "type" may be incorrectly used instead of "style" to refer to an identifiable 'style of appearance' or 'working style characteristic' of a particular kennel or "dogs of a well established