Wolves are an extremely social animal. They exist as a social unit called a pack. Wolves travel and hunt in a group and perform almost all other activities in the company of fellow wolves. The pack, the basic unit of wolf social life, is usually a family group. It is made up of animals related to each other by blood and family ties of affection and mutual aid. The core of a pack is a mated pair of wolves -an adult male and female that have bred and produced young. The other members of the pack are their offspring: young wolves ranging in age from pups to two and three-year-olds. Pack sizes...