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 ...

A new clip out of Yellowstone offers a rare look at the brutal reality of kleptoparasitism in the backcountry. Watch a pack ...

Unusual predator standoff: Video shows grizzlies and wolves confronting each other over a bison carcass in Yellowstone’s LeHardys Rapids, with aggressive displays but no injuries. Why it’s rare: ...

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 ...

Wolf and grizzly bear sightings are fairly common in Yellowstone. But scenes such as these, illustrating the life-or-death ...

The day after two hikers were mauled by a grizzly in Yellowstone, tourists yelled at rangers who were warning them to ...

Scientists spotted the first grizzly bear of 2026 earlier this week at Yellowstone National Park, marking the beginning of the end of hibernation season for the massive creatures, the National Park ...

Yellowstone National Park has recorded its first grizzly bear sighting of 2026 as bears begin to emerge from hibernation. On Monday, March 9, Yellowstone biologists working in the northern part of the ...

Scientists spotted the first grizzly bear of 2026 earlier this week at Yellowstone National Park, marking the beginning of the end of hibernation season for the massive creatures, the National Park ...