They are brown in color, with a light stripe along its side. Others may also have light or silvery foreheads, underbodies and ears. They have long claws and pads on their feet that allow them to run in the snow. A carnivore, they will feed on many things from small eggs to deer. Their strong compact body allows them to take down animals 5 times their own size.
Prey includes reindeer, roe deer, wild sheep and elk.
Legendary for its appetite, strength and fierce disposition the wolverine actually obtains much of its food by scavenging. Mating occurs once every two years with an average of 2 kits per litter. Litters of 3 or 4 kits have also been found. Home ranges may be anywhere from 30-250 square miles for a single animal. The largest being 770 square miles.