wolf, also known as the gray wolf or grey wolf

The wolf is the largest member of the canine family, and is also distinguished from coyotes and jackals by a wider snout, shorter ears, shorter torso, and longer tail. The wolf's legs are moderately longer than those of other dogs, which enables the animal to move quickly, surmounting deep snow that covers most of its geographical range in winter. The ears are relatively small and triangular in shape. The wolf's head is large and heavy, its forehead is broad, its jaws are strong, and its muzzle is long, blunt.