Wildlife officials are investigating the suspicious death of a gray wolf near Yellowstone National Park. The killing is ...

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

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

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

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 ...

Investigation began after the wolf's research collar was found in a tree.

A celebrity wolf was illegally killed near Yellowstone National Park, with a reward for tips climbing past $31,000.

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

Tourists visiting Yellowstone National Park on October 6 were left stunned after witnessing a man walk straight toward a wild wolf pack in what authorities are calling a highly dangerous and reckless ...

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