Why doesn't buck stop attacking Spitz?

Buck doesn't stop attacking Spitz initially because he is driven by instinct and the need to assert dominance in a competitive environment. However, as Buck learns about the dynamics of leadership and survival in the wild, he recognizes that his focus should be on the greater challenges they face, such as the harsh conditions and the need for teamwork. This realization helps him channel his energy more productively, ultimately leading to his eventual confrontation with Spitz. Buck's evolution reflects his growing understanding of the natural order and the importance of strategic thinking over brute force.