Rangers at Yellowstone National Park are reportedly trying to solve the mystery of what happened to a well-known female wolf ...

A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing ...

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

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

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

A new peer-reviewed study reports that claims of a “world-leading” trophic cascade in Yellowstone National Park are not supported, citing problems with the methods used in earlier research. A newly pu ...

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

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

A study investigated thousands of kill sites that provided valuable information about the hunting and feeding behaviors of ...

A coyote in Yellowstone was lucky to escape after it got a little too close to a pack of wolves feasting on a bison carcass, ...

These rare kills in Washington State have biologists searching for answers. “Everyone always assumes wolves have the upper ...

Footage reveals vast size difference between Yellowstone's wolves and coyotes.