Grey wolves live in a wide range of habitats, including tundras, woodlands, deserts and grasslands. The scientific name for a grey wolf is Canis lupus. Females usually weigh 60-100 pounds and males usually weigh 70-145. Most wolves live and hunt in packs.
Wolves are carnivores and eat only meat. Their preferred prey is hoofed animals such as deer and moose, but they also eat smaller animals such as rabbits, beavers and squirrels.
Packs can vary in size but are usually composed of seven or eight animals who hunt in a specific territory. Territories can range from several miles to a thousand miles, depending on terrain. Wolves communicate using a complex system of barks, whines and howls. They are social animals and form very strong bonds with other wolves in a pack.
Wolves mate in January or February and the gestation period is 63 days, the same as for domesticated dogs. There are usually four to seven pups in a litter. The mother and the father, along with others in the pack, take care of the young.