Some Wolf Facts Wolf, carnivore related to the jackal and domestic dog. All wolves are characterized by powerful teeth, bushy tails, and round pupils. Certain characteristics of the skull distinguish them from domestic dogs, some breeds of which they otherwise resemble. The red wolf is somewhat smaller in size and usually darker in color.
Wolves are equally at home on prairies, in forestlands, and on all but the highest mountains.
In the winter they travel in packs in search of food. Small animals and birds are the common prey of wolves, but a pack may sometimes attack reindeer, sheep, and other large mammals, usually selecting weak, old, or very young animals for easier capture. When no live prey can be found, wolves feed on carrion. They also eat berries. The den, or lair, of the wolf may be a cave, a hollow tree trunk, a thicket, or a hole in the ground dug by the wolf.