Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in ...

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 ...

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 ...

Scientists debunk decades-long study claiming wolves' reintroduction triggered a dramatic transformation in Yellowstone.

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 ...

Caught between wolves, mountain lions and grizzly bears, elk are struggling to fend off predators. A trail camera video shows the elk's desperation as ...

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 ...