Gunnison's prairie dog is a member of the Sciuridae family, which includes squirrels, chipmunks, marmots, and prairie dogs. Gunnison’s prairie dog (Cynomys gunnisoni) adults vary in length from 309 to 373 millimeters (12 to 15 inches) and weigh 650 to 1,200 grams (23 to 42 ounces), with males...