Allan Hathaway, a wildlife photographer, captured the video of the Wapiti wolf pack chasing after the lone bison in Yellowstone National Park.

It’s an animal-eat-animal world out there, especially in Yellowstone National Park. There are almost 70 different mammal species in Yellowstone, and most of those can be separated into two categories: ...

Bison are among the most powerful land mammals in North America, capable of sprinting at surprising speeds despite their massive size. Their muscular necks, heavy skulls, and sharp horns are built for ...