In Yellowstone National Park, Scott Brovsky captured dramatic footage of a grizzly bear being chased away from a bison carcass by a pack of six wolves from the 8 Mile wolf pack. The wolves nipped at ...

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. Three Americans killed — Trump vows ...

The clip is one of thousands captured by collar cameras attached to 12 bears in the Arctic last year for a Washington State ...

Dr. Middleton and Dr. Brashares are professors of environmental science, policy and management at the University of California, Berkeley. Dr. Orrick is the director of the California Wolf Project.