Tommy, a bull elk at the North Carolina Zoo, picked a fight with a bison — and won. Biologists say Tommy wouldn't have fared ...

For most of the year, Yellowstone’s bison appear calm and collected — grazing in herds, wallowing in dust, or blocking traffic in famous “bison jams.” But when late summer rolls around, everything ...

This bison wasn’t putting up with one particular wolf’s bull. They say you’re always stronger in numbers, but this wolf pack learned the hard way that that’s not always the case. Incredible footage ...

Grand Teton National Park on Wednesday shared images of bison “turning up the drama” during the ongoing bison rut. The rut, also in progress in neighboring Yellowstone National Park, occurs in July ...

They say you're always stronger in numbers, but this wolf pack learned the hard way that that's not always the case. Incredible footage taken at Yellowstone National Park by a group of tourists with ...