Males are generally heavier than females.
Coloring is usually a mixed gray or grizzly color, though a few are black or white. Gray wolves appear quite similar to large German shepherd dogs. They have a pointed muzzle, erect pointed ears, bushy tails and moderately long legs. Gray wolves usually live in family groups or packs of 2-8 individuals, though some packs contain 20 or more members. A dominance hierarchy exists within each pack.