The outside of civilization is an escape from Buck's fears, because the wild for him is survival, and the threat of intimacy exists, where he must learn to trust others for survival.
In "Call of the Wild", Buck's wolfish heredity is brought to the forefront when he is unexpectedly thrown into the harsh and alien world of Klondike. On the first night in Dyea beach, "He had been suddenly jerked from the heart of civilization and flung into the heart of things primordial." He is a bit shocked that he went from his pampered, lovely life, to a harsh, unstable community. Besides the troubles and hardships of adaptation, Buck needs to also look at his priorities; survival of the fittest. Moments after being examined, "It was all well enough in the Southland, under the law of love and fellowship...but in the Northland, under the law of club and fang, whoso took such things into account was a fool, and in so far as he observed them, he would fail to prosper."
He remembers his life as gentle, and spoiling, but now, the reality lies for him to discover, that he no longer exists in that life. Buck thinks that when he compares his life to the rest of the pack, he determines that he will fail to fit-in or survive. Buck has many difficult times in this new life with anger and displeasure, but he succeeds in each of them, which makes him evolve from a once never known town dog, to a big, strong wolf with great leadership.
Buck's experiences of his lessons ultimately leads to his loss of civilization. While fearing from the man in the red sweater and his club, the dog realizes "that he stood no chance" against him. Buck recognizes that the relationship between...