The most important thing about the gray wolf is that gray wolf is the largest of all wolves. A wolf's bite is six times stronger than a human's and two times stronger than a large dog's. Wolves have been know to travel in pack of up to 30. The pack is made up of one male leader, one female leader, and their offspring. In spring the alpha female wolf digs a long tunnel with den at the end. In the protection of the den, she gives birth to 6 to 8 pups. But the most important thing about the gray wolf is that the gray wolf is the largest of all wolves.