If it wasn’t for a hidden herd in the deepest reaches of this National Park, bison would have been wiped out in the late 1800s. Today, thousands of them thrive.

With Yellowstone National Park’s bison population increasing to an estimated 5,449 animals following the spring calving season, officials are recommending the herd be reduced this winter by ...

With Yellowstone National Park’s bison population increasing to an estimated 5,449 animals following the spring calving season, officials are recommending the herd be reduced this winter by ...

A domesticated cow has surprised Polish naturalists by spending the winter living with a herd of wild bison in the primeval Bialowieza Forest. The cow "chose freedom" by running away from a farm ...

That same year, state and federal agencies began eliminating some Yellowstone bison that migrated out of park boundaries. Since the winter of 1991-92, Native Americans from reservations such as ...