The nose of the wolf is moist. This helps increase the particles of scent that is absorbed. Hunger can actually enhance the wolf's sense of smell. In the right atmosphere a wolf can smell prey from up to one and a half miles away. (http://www.wolfsource.org/?page_id=70)

A wolf has two hundred million smelling cells inside its nose and can smell 100 times better then a human being. A wolf has a very rough tongue which is used for cleaning the meat off of the bones. (http://www.animalcorner.co.uk/wildlife/wolves/wolf_anatomy.html)

The pressure of a wolf jaw is twice that of a German Shepherd at 1500 pounds of pressure per square inch. Crushing the large bones of their prey is not a problem. Wolves feed mainly on carrion of Caribou, Elk, Deer, Moose. (http://www.wolfsource.org/?page_id=70)