Mature elk can run 40 mph when they become so inspired, and recent footage from Yellowstone National Park shows that young elk are likewise fleet of foot when their lives are at stake. The ...

A baby elk outran — and outswam — a wolf pack in Yellowstone National Park, video shows. Screenshot of montanawild_'s Instagram video A “brave” little elk calf sprinted to safety — with a pack of ...

Two of the world's top predators squaring up. Grizzlies and wolves are common in a few ways, and very different in others. Both are predators, using both hunting and scavenging methods to secure their ...

This winter saw the most wolves from Yellowstone National Park killed in about a century. That's because states neighboring the park changed hunting rules in an effort to reduce the animals' numbers.

A “brave” little elk calf sprinted to safety — with a pack of wolves close on its heels in Yellowstone National Park, nail-biting video shows. The pack had separated the calf from its mother across ...