In Yellowstone National Park, when a bison dies it’s not long before wolves or grizzly bears move in on the carcass. If one or two wolves are on the carcass, a lone grizzly bear can usually clear them ...

Prospective visitors to Yellowstone National Park are reminded that the bison rut is underway through August, and to treat the colossal beasts with extra caution. Everyone knows that bison are massive ...

Wildlife biologists say it's rare for grizzlies to eat from the head of a bison because it would be difficult to get through ...

A guide in Yellowstone National Park has captured extraordinary footage showing a grizzly bear and her cubs chasing a wolf from they bison carcass they had claimed. But Billy Fabian’s footage also ...

Both a grizzly bear and a wolf pack targeted a bison carcass in Yellowstone National Park, Wyoming in December. A tense fight unfolded between the predators.