Grizzlies also feed on fish such as bass, trout, and salmon. They always choose calves or injured animals as opposed to a healthy adult. They prey on mammals such as bison, bighorn sheep, mule deer, white-tailed deer, caribou, elk, and sometimes black bears. They consume a wide range of food items constituting both plants and animals. Grizzly bears are omnivorous although their digestive system is that of a carnivore. A fully grown male bear can weigh as much as 1,700 pounds while an adult female grizzly bear can weigh as much as 800 pounds. Grizzly bears have exceptionally long claws on their forefeet which also gives them additional ability to dig for food and their dens. It is this muscle that gives the bear the extra strength for digging. They have short round ears, dished face, and a large hump on their shoulders, which is a mass of muscle attached to their backbone. The grizzlies are large and vary in color from dark brown to light tan. The grizzly bear is the traditional name of the North American brown bear which is divided into distinct populations, sometimes regarded as separate subspecies like Kodiak bears of Alaska.
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