gray wolf, gray wolves, timber wolf, timber wolves, wolf, wolves, grey wolf, Canis lupus, mammal, animal, wildlife, fauna, canine, wild dog, predator, carnivore, vertical, snarl, snarling, aggressive, aggression, conflict, fierce, dangerous, intense, captive, montana, growl, growling, teeth, photo, photos, photograph, photographs, image, images, stock, of, agency, leesonphoto