How does Buck respond to his new life in the North?

Buck's response to his new life in the North illustrates a significant transformation throughout "The Call of the Wild." Initially, Buck is a domesticated pet, but as he faces the harsh realities of life in the wilderness, he begins to shed his civilized behaviors. His gradual adaptation reflects a deepening connection to his primal instincts, which are awakened by the challenges and demands of survival in a brutal environment.

As Buck experiences the rawness of nature and the struggle for dominance among the dogs, he learns to embrace instincts that had lain dormant during his life in the comfortable home of Judge Miller. This evolution culminates in Buck's ability to thrive in the wild, recognizing his place within the natural order and ultimately answering the call of his ancestry. His journey from pet to powerful and instinctual creature represents the central theme of the story – the struggle for survival and the return to a more primal state of existence.