Prairie dog Prairie dog Prairie dogs (genus Cynomys) are herbivorous burrowing rodents native to the grasslands of North America. The five species are: black-tailed, white-tailed, Gunnison's, Utah, and Mexican prairie dogs. They are a type of ground squirrel, found in the United States, Canada and Mexico. In Mexico, prairie dogs are found primarily in the northern states, which lie at the southern end of the Great Plains: northeastern Sonora, north and northeastern Chihuahua, northern Coahuila, northern Nuevo León, and northern Tamaulipas. In the United States, they range primarily to the west of the Mississippi River, though they have also been introduced in
Gunnison's prairie dog females. Gunnison's prairie dogs have 22 teeth, and five pairs of mammary glands. The Gunnison's prairie dog, "C. gunnisoni", is the only prairie dog species that has 40 chromosomes. The other four species, black-tailed, white-tailed, Utah, and Mexican prairie dogs, have 50 chromosomes. Their coats are yellow-toned buff merged with black-colored hairs. The upper head, sides of the cheek, and eyebrows are distinctly darker than the rest of the body. Their tails are mostly white with grayish-white ends and the tips are light gray. The Gunnison's prairie dogs go through two yearly periodic moults during spring and fall. In spring,