Montana is suing Yellowstone National Park over a plan to increase the number of bison in and around the park and establish greater tolerance for their presence outside its boundaries.

Tourists at Yellowstone National Park recently witnessed a shocking and heartbreaking event. In a tragic Yellowstone bison death, a large bull wandered into a geothermal area, lost its footing, and ...

"The calf swam across the river and, thinking the wolves were gone, decided to swim back. Unfortunately, 3 wolves were ...

Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the ...

On the morning of June 21, visitors at Grand Prismatic Spring in Yellowstone National Park observed a bison slip into a ...

A bystander shared a startling video of a toddler getting dangerously close to a massive bison at Yellowstone National Park.