A tourist guide at Yellowstone filmed a wolf chasing after an elk for about 3.5 to 4 miles.

A tour guide and his client this week witnessed an extraordinary scene involving wolves chasing two elk for 3-plus miles in Yellowstone National Park. The accompanying footage, captured by guide ...

When wolves are on the hunt, a kill rarely goes unnoticed for long. In the elk- and deer-rich areas of northern Yellowstone National Park, ravens are often among the first scavengers to arrive on the ...

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 ...

New research shows ravens do not follow wolves to find food. Instead, they remember hunting areas and return later.

Add Yahoo as a preferred source to see more of our stories on Google. A tour guide and his client this week witnessed an extraordinary scene involving wolves chasing two elk for 3-plus miles in ...