Dean M. Chriss
Grizzly Meadow, Yellowstone National Park
(Click image to enlarge)
The grizzly bear (Ursus arctos horribilis) is a subspecies of brown bear that lives in the uplands of western North America. Every other year females (sows) usually produce two cubs which weigh only about 1 pound (500 grams). Adult female grizzlies weigh 290–440 lb (130–200 kg) while adult males weigh between 400 and 790 pounds (180–360 kg). Their average length is about 6.50 ft (198 cm), with an average shoulder height of 3.35 ft (102 cm). Grizzly bear fur color ranges from blond to nearly black but is usually dark brown in color with white tips. A pronounced hump of muscle appears on their shoulders and can be used to help distinguish distinguish a black bear from a grizzly bear, along with the grizzly bear's larger size and more concave face.