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

We have captured many hunting sequences on camera but have not observed one where the wolf was leaping like this." ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Wolves are swift and agile, but they typically remain close to the ground while chasing prey. But not always. The accompanying ...