Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

Things are getting hotter than a Dutton family feud. Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems, with the capacity to ...

Yellowstone National Park constantly warns tourists to remain at least 25 yards away from bison, but every year at least one tourist fails to heed the warning and suffers the consequences. The first ...

YELLOWSTONE NATIONAL PARK, Wyo. — A bison gored a man Tuesday after a large group of visitors got too close to the animal in Yellowstone National Park, officials said. The 30-year-old from Randolph, ...

Scientists are tracking changes at the giant supervolcano that lies under Yellowstone National Park, but they say there's no need to worry at the moment. “The western part of the Yellowstone caldera ...

A new study finds free roaming bison in Yellowstone National Park are reshaping the ecosystem. They have had a positive effect on grasses and soil, but some changes may not be for the better. A couple ...