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

Wolves hunting foxes is heard of, but the reverse has never been recorded, making this incident extremely rare.

The incident was likely an opportunistic kill, with the fox preying on the small pup to possibly threaten the survival of the ...

In California, as wolf numbers grow — a remarkable return after a century — livestock producers are increasingly worried as these predators occasionally take down cattle. Gray wolves are an endangered ...