Her presumed killing has also highlighted a broader issue. Community mourns loss of national park icon following disturbing ...

Footage shows grizzly bear ambling across snow in apparent search for a snack.

Bison, elk and other animals die in droves in Yellowstone's remote “animal boneyard.” Only a few know how to get there, ...

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

Learn more about the rare instances when seismic and magma activity overlap in Yellowstone National Park.

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

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Far beneath Yellowstone’s famous geysers, the ground is quietly on the move. Parts of the volcanic system are rising by ...

In Yellowstone, cougars coexist with wolves by changing what they eat and where they hunt, minimizing conflict driven largely by prey theft.

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

Can't really do anything except stop and admire wildlife in motion. As you know, there’s all kinds of rules of the road as to who has the right of the way, but it was clear in this instance that the ...

Yellowstone’s "secret" century-old Old Faithful stamp is available only by request and may be the last of its kind. Before ...