Bison are playing a larger role in the sustenance of park wolves compared to past years as Yellowstone National Park’s bison herd has swelled and elk numbers have declined, according to the ...

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal ...

Studies in the park’s Northern Region have estimated that wolf survival is due in large part to that reliable source of bison meat, composing as much as one-quarter to one-third of a wolf’s scavenging ...

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. When you purchase ...

Wolves in Yellowstone National Park will sometimes test their predation skills on lone adult bison. But there can be painful consequences. The accompanying footage, captured by Billy Fabian while on a ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...