Scientists say wolves helped save aspen trees in Yellowstone by eating the elk that were gobbling aspen saplings. But now ...

Yellowstone, the oldest and most famous national park in the United States, once again offered one of those breathtaking ...

The Northern Arapaho Tribe has joined the Eastern Shoshone in reclassifying bison as wildlife. Next comes a move to amend the ...

Tahnee Szymanski, state veterinarian, said although bulls pose a “very low risk” for spreading disease to livestock, the animal was killed because single bull bison are difficult to haze.

The incident unfolded near the Yellowstone River on Grand Loop Road when the tourist "decided to walk down the hill" near the ...

Scientists documented the first new generation of aspen trees in Yellowstone this summer, 30 years after wolves were ...

One of the cardinal rules when visiting Yellowstone National Park is to exercise caution around the wild animals, ...

"Dust clouds. Deep bellows. Hooves stomping. Thunderous headbutts. It’s not a Kevin Costner series—it’s the annual bison rut.

The woman obviously violated Yellowstone's 25-yard rule pertaining to bison, but the rule is sometimes hard to follow. A rare ...

Bison have injured more people in Yellowstone than any other wild animal. They can run up to 35 mph (56 kph), faster than the men’s world record in the 100-meter dash.

Yellowstone National Park has long been home to thousands of bison, the area’s most iconic animal. Almost daily, tourists stop their cars to allow streams of these massive mammals to cross the ...