Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal ...

A new study has found that cougars are making slight changes to their diets in order to avoid encounters with wolves. In ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...

The three wolves Utah killed were not symbols or statistics,” writes Eric Clewis with Defenders of Wildlife in an op-ed.

A gray wolf was illegally shot and killed just north of Yellowstone National Park last month. According to wolf advocates, ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

A hunter illegally killed a 'rising star' wolf and threw away its GPS collar.

Wolf 1478F could have become the Junction Butte pack alpha, experts say.

A new study shows how wolves steal kills from cougars in Yellowstone, driving an uneven feeding rivalry and changing cougar ...

Another wolf from Yellowstone National Park's famous Junction Butte Pack killed in Montana is being investigated as a ...

Bison, elk and other animals die in droves in Yellowstone National Park’s remote “animal boneyard.” Their carcasses provide a ...