Northern hemisphere except tropical forests and arid deserts. The average length of a wolf from head to tail is 5 ft.
Southern wolves are generally smaller in size.
The gray wolf is a carnivore, both predator and scavenger. Prey is located by chance or scent. Wolves primarily hunt in packs for large prey such as moose, elk, bison, musk oxen, and reindeer. Once these large ungulates are taken down, the wolves attack their rump, flank, and shoulder areas. Wolves control prey populations by hunting the weak, old, and immature.