Adult female grizzly bears can weigh from 200 to 450 pounds, while the adult male of the species weighs anywhere from 300 to 850 pounds. The largest documented grizzly on record weighed 1,200 pounds and stood 10 feet tal... More »

Grizzly bears are estimated to be 2.5 to 5 times as strong as an average human. Grizzly bear jaws are powerful enough to bite through a cast iron skillet and to crush a bowling bowl. More »

Some adaptations for the grizzly bear are long, powerful claws, keen sense of smell and hibernating through the winter. Grizzly bears in the wild can live up to 30 years. More »

The male American black bear averages around 250 pounds although some may weigh as little as 125 pounds or as much as above 600 pounds. Female black bears average around 150 pounds, although their weights can range from ... More »

The average weight of an adult male polar bear is 1,543 pounds while an adult female is half that size and weighs up to 1,000 pounds. The largest polar bear ever recorded weighed 2,219 pounds and was found in Alaska in 1... More »

Adult male brown bears weigh anywhere from 400 to 1,200 pounds, while females weigh from 300 to 800 pounds, depending on the subspecies. A female weighs roughly half the weight of a male. The heaviest brown bear ever rec... More » Pets & Animals Mammals Bears

The world’s largest known bear from an existing species was an 11-foot-tall male polar bear that weighed 2,200 pounds, as Discovery News reported in February 2011. The largest recorded bear from an extinct species was at... More »