As the state of Montana’s lawsuit over Yellowstone National Park’s bison management plan creeps forward in court, 260 animals ...

Yellowstone is home to some of North America's most iconic wildlife, including the Big Five. Here's what you need to know about these must-see animals.

YELLOWSTONE NATIONAL PARK, Wyo. (AP) — A new thermal vent spewing steam in the air at Yellowstone National Park is gaining ...

Yellowstone is the only place in the United States where bison have lived continuously since the prehistoric age.

Yet the National Park Service is only a quarter of the way toward its proposal to remove up to 1,375 animals this season.

New research examined each US national park’s average yearly deaths — and some of the numbers are shockingly high.

Yet the National Park Service is only a quarter of the way toward its proposal to remove up to 1,375 animals this season.

If you don't get to see it, there are more than 500 active geysers located within Yellowstone National Park, including Old Faithful. Established in 1872, Yellowstone National Park was the world's ...

This week's contribution is from Shaul Hurwitz, research hydrologist with the U.S. Geological Survey. Yellowstone National Park is famous for its volcanic landscapes, erupting geysers, colorful hot ...