For a variety of reasons bears are waking up mid-hibernation in Alaska. Is this a temporary phenomenon or a portent of ...

The grizzly bear (Ursus arctos horribilis) is also known as the North American brown bear. It is the third-largest bear belonging to the family Ursidae, which includes eight species of bears.

View Full Profile. Learn about our Editorial Policies. Deep in the forests of south-central Sweden, brown bears (Ursus arctos) emerge from hibernation ravenous. Mama bears and their cubs will consume ...

So, for the study, the team used an unusual model species, hibernating Swedish brown bears (Ursus arctos), to figure out why the bears rarely ever get blood clots when they hibernate (although ...

The lack of protected areas in the region and the increasing number of brown bears (Ursus arctos) have resulted in both human-wildlife conflicts and the development of mechanisms and practices to ...

DESCRIPTION: Brown bears are usually dark brown in color, with shades varying from cream to black. The brown bear is characterized by a distinctive hump on the shoulders, a slightly dished profile to ...

Also known as the North American brown bear, the grizzly bear is a powerful predator that can weigh up to 800 pounds. (Photo: Paul Hamilton/Can Geo Photo Club) The ends of the hairs on grizzly bears’ ...