How did buck rule in the call of the wid?

In Jack London’s short story "The Call of the Wild," Buck rules through a combination of strength, intelligence, and adaptability. He learns to assert his dominance over other dogs and earns the respect of his human handlers, particularly John Thornton. As he reconnects with his primal instincts, Buck becomes a leader, demonstrating both physical prowess and strategic thinking in the harsh wilderness. Ultimately, Buck's rule is defined by his ability to embrace his wild nature while forming deep bonds with those he trusts.