A brave bison mother protects her newborn calf from an attacking wolf pack until the rest of the herd arrives to aid in the ...

A new clip out of Yellowstone offers a rare look at the brutal reality of kleptoparasitism in the backcountry. Watch a pack ...

In Yellowstone National Park, Scott Brovsky captured dramatic footage of a grizzly bear being chased away from a bison carcass by a pack of six wolves from the 8 Mile wolf pack. The wolves nipped at ...

You mess with the calf, you get the herd. It's estimated that around 4,500 bison roam around Yellowstone National Park.