call of the wild- What is the primary reason that Bck goes into the wild more in Chapter 7

In Chapter 7 of "Call of the Wild", the primary reason Buck goes into the wild more is due to his increasing connection and attraction to the primitive, wild life. He starts to feel a deep instinctual pull towards the wilderness. He hears a call from the wild, which he cannot resist. This call is a metaphor for his natural instincts and his ancestral connection to wild wolves. He is drawn to the wild more and more, and he starts to spend more time there, hunting his own food and sleeping out in the open, away from the camp. This is a significant development in Buck's character as he is slowly shedding his domesticated life and embracing his primitive, wild side.