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.

Yellowstone bison now breed as one interlinked population. Genetic studies show strong gene flow across all bison herds.

Albino animals don’t produce any melanin ... Baldes tells National Geographic. A rare white bison calf was spotted in Yellowstone National Park this month, and since then, wildlife watchers ...

A 72-year-old woman has been hospitalized after she was gored by a bison at Yellowstone National Park while attempting to take its photo, park officials announced. The incident occurred Thursday ...