Wolf and grizzly bear sightings are fairly common in Yellowstone. But scenes such as these, illustrating the life-or-death struggle for sustenance among apex predators, are rarely documented in such detail.

A new clip out of Yellowstone offers a rare look at the brutal reality of kleptoparasitism in the backcountry. Watch a pack of wolves challenge a grizzly for a seat at the dinner table—that is, until "king of the carcass" griz shows up.

Stunning viral footage shows a grizzly bear fighting a wolf over the remains of a dead animal in a river, proving size matters in the wild kingdom.

The roars of a grizzly echoed from a riverbank in Yellowstone National Park on Sunday, as it postured with a wolf over a bison carcass. A biologist

If it’s May in the Canadian province of Alberta, wild horses are on high alert for predatory grizzly bears. On Sunday, the Help Alberta Wildies Society shared footage showing a band of horses running for their lives across a forest clearing.

A hiker had a close call with a charging grizzly bear near the the popular hiking spot of Troll Falls in Kananaskis Country, according to a provincial warning.

A grizzly bear chased by a pair of coyotes seemed so unlikely, even those watching weren’t sure they believed it. This bear got too close to their den

"The grizzly is a keystone species, shaping ecosystems in ways that ripple across landscapes. Its absence changed California."