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

MAMMOTH HOT SPRINGS, Wyo. — Starting this year, Yellowstone National Park will extend the fishing season on three rivers in the park. The following waterways, located in the west side of the park, ...

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

Tourists have been caught on camera getting too close to bison, wolves, and bears. Approaching wild animals can cause them to ...

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

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

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

Yellowstone National Park is extending the fishing season on three rivers in the park. That includes the Firehole River, ...

A grizzly spotted out wandering in Yellowstone National Park on Monday might be up from hibernation incredibly early or awake ...

Millions of people head to Yellowstone National Park each year, making traffic through popular areas a major problem for the ...

New preliminary visitation numbers from the National Park Serviceshow Glacier and Yellowstone National Parks moving in different directions last year, despite ...

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...