Describe the wolves physical appearance and the importance of the wolf pack in Call of the Wild.
The primary importance of the wolf pack in Jack London's The Call of the Wild is to serve as the lure that calls for Buck's return to the wild. The wolf call that Buck often hears stirs his preternatural instincts, his old memories; he dreams of prehistoric men crouching before a fire. When he first encounters a wolf in the wild, he is drawn by its "long-drawn howl" unlike that made by any husky. When they meet, Buck circles the animal, which is "suspicious and afraid," for Buck is three times his weight, and its head only reaches Buck's shoulders. They eventually rub noses and become "brothers," but Buck soon returns to the camp of John Thornton. After Thornton's death, Buck returns to the pack again. At first they attack him, but Buck fights off the entire group until they retreat out of respect. Their white fangs still were bared, but they kept their distance. Then one wolf, "lean and gray," came forward to touch noses. It was Buck's "brother" from his earlier meeting. Another, "an old wolf, gaunt and battle-scarred," approaches Buck and they, too, sniff noses. Then arises the familiar howl from the entire pack--a song of acceptance for their new leader.