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

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

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

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

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

A little over a month after a wolf living among Yellowstone's most famous wolf pack was illegally killed, Montana wildlife ...

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

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

If a wolf pack can bring down a bison, or locate a dead or dying bison, the carcass can sustain the pack for days.

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, ...