Footage shows part of a wolf-versus-elk pursuit that also has bison taking cover.

Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members working together to isolate and exhaust an animal. That reality makes one ...

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 ...

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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 ...

In Yellowstone’s wild chess match between wolves and cougars, it turns out the real power play is theft. After tracking nearly a decade of GPS data and thousands of kill sites, researchers found that ...

Faced with the quandary of how to get mountain lions out of trees for scientific analysis, researchers dosed them with ketamine, then climbed up to ...

Add Yahoo as a preferred source to see more of our stories on Google. Mature elk can run 40 mph when they become so inspired, and recent footage from Yellowstone National Park shows that young elk are ...

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 ...