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

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 ...

A herd of bison caused a "little bison jam" at Yellowstone National Park in Wyoming as the majestic animals crossed the road and held up traffic. Video footage shared by Cindy Shaffer shows a line ...

A bison was caught on camera on Thursday, April 17, enjoying a satisfying scratch against a signpost in the snowy landscape of Yellowstone National Park. The amusing moment was filmed by Cindy Shaffer ...

Library of Congress Prints and Photographs Division This Winter, if all goes as planned, a caravan of livestock trucks will carry dozens of American bison out of Yellowstone National Park on a 500 ...

Yellowstone's Junction Butte wolf pack failed in a recent attempt to kill a bison, but the pack appears to be thriving again after the death of its former alpha female, Wolf 907F.