How is buck a reflection of john Thornton?

Buck, in Jack London's "The Call of the Wild," reflects John Thornton through his loyalty, strength, and the deep bond they share. Thornton represents the ideal human companion for Buck, embodying kindness and respect for nature, contrasting with the brutality Buck faced earlier. Their relationship showcases Buck's transformation, as he finds love and trust in Thornton, highlighting the theme of companionship in the wilderness. Ultimately, Buck's character growth mirrors Thornton's nurturing influence and deep connection to the natural world.