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Though European settlement gradually eliminated the bears from much of their original habitat, grizzly populations can still be found in parts of Wyoming, Montana, Idaho, and Washington State. These animals need a lot of space-their home range can encompass up to 600 square miles-so their ideal habitat is one that is isolated from development and has plenty of food and places to dig their dens. Grizzlies once lived in much of western North America and even roamed the Great Plains. They can be dangerous to humans, particularly if surprised or if humans come between a mother and her cubs. Bears also eat other animals, from rodents to moose.ĭespite their impressive size, grizzlies have been clocked running at 30 miles an hour. Grizzly bears are powerful, top-of-the-food-chain predators, yet much of their diet consists of nuts, berries, fruit, leaves, and roots. Females give birth during this winter rest, often to twins. In this season, dozens of bears may gather to feast on the fish, craving fats that will sustain them through the long winter ahead.īrown bears dig dens for winter hibernation, often holing up in a suitable-looking hillside. Dramatic gatherings of grizzly bears can be seen at prime Alaskan fishing spots when the salmon run upstream for summer spawning. These awe-inspiring giants tend to be solitary animals-with the exception of females and their cubs-but at times they do congregate. Grizzly bears are protected by law in the continental United States-not in Alaska-though there have been some controversial attempts to remove those protections in recent years. Grizzlies are typically brown, though their fur can appear to be white-tipped, or grizzled, lending them their name. The grizzly bear is a North American subspecies of the brown bear. Current Population Trend: Stable What is the grizzly bear?