The state filed its lawsuit at the end of last year, arguing Montana’s concerns were not properly addressed in Yellowstone's ...

Bison jams are not uncommon in Yellowstone given their population at the park has ranged from 3,500 to nearly 6,000, the National Park Service says.

A bison was caught on video scratching itself against a sign post in the snowy landscape of Yellowstone National Park.

The state filed its lawsuit at the end of last year, arguing Montana’s concerns were not properly addressed in Yellowstone's new bison management plan and that the analysis was flawed.

A guide in Yellowstone National Park has captured rare footage showing a baby bison wandering with its momma and herd on a wintry day in late March. It’s a sure sign that spring has arrived ...

A bison was spotted enjoying a satisfying scratch against a signpost in the snowy landscape of Yellowstone National Park.

There’s not a grizzly bear in Yellowstone National Park that is willing to mess with a bison herd on full alert. The accompanying footage, captured Monday via the park’s livestream camera ...

The rival Rescue Creek pack set upon Wolf 907F and some of her pack — it was split at the time — while they fed on a bison carcass on the north side of the Yellowstone River. The Rescue Creek ...