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

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

Idaho Fish and Game Feb. 21-22 killed three wolves in the state’s far north to support elk recovery. Helicopter-borne staff shot the wolves. The first-ever effort in the department’s Panhandle elk ...

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 ...

It didn't come as a surprise to researchers that the re-introduction of wolves in certain parts of the northern U.S. would reduce deer and elk herds, and thus reduce automobile accidents with those ...