Prairie dog itself more noticeable to the predator. Predators, though, seem to have difficulty determining which prairie dog is making the call due to its "ventriloquistic" nature. Perhaps the most striking of prairie dog communications is the territorial call or "jump-yip" display of the black-tailed prairie dog. A black-tailed prairie dog will stretch the length of its body vertically and throw its forefeet into the air while making a call. A jump-yip from one prairie dog causes others nearby to do the same. Ecologists consider this rodent to be a keystone species. They are an important prey species, being the primary diet
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