Mexican prairie dog Mexican prairie dog The Mexican prairie dog ("Cynomys mexicanus") is a diurnal burrowing rodent native to Mexico. Treatment as an agricultural pest has led to its status as an endangered species. They are closely related to squirrels, chipmunks, and marmots. "Cynomys mexicanus" originated about 230,000 years ago from a peripherally isolated population of the more widespread "Cynomys ludovicianus". These prairie dogs prefer to inhabit rock-free soil in plains at an altitude of . They are found in the regions of southern Coahuila and northern San Luis Potosí in northern Mexico, where they eat herbs and grasses native to the plains
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