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.

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’ ...

Every year, at the end of summer, grizzly bears in Alaska wait for spawning salmon to return in their thousands. Their physiology changes and they become eating machines, entering a state called ...

But we also found an interesting wrinkle in the data. Although hunters extended empathy to other hunters whose properties had been damaged by grizzly bears ... bringing you facts and analysis ...

Grizzly bears and black bears occupy much of the same territory in North America, and the two species are known to be fierce competitors. As the one of the continent’s top predators, grizzlies ...

Grizzly bears in Yellowstone National Park are waking up and most roads will open to automobile traffic next month, which means prime bear-viewing season is just around the corner. With this in ...

Grizzly bears are returning to the North Cascades in Washington State, which has not had a grizzly sighting since 1996. The decision to repopulate the state's mountainous region came after intense ...