What does Curlys death foreshadow in call of the wild?

Curly's death in "The Call of the Wild" foreshadows the brutal realities of the wilderness and the harsh survival instincts that dominate life in the Yukon. It serves as a stark reminder of the dangers that Buck and the other dogs face, highlighting the violent nature of the environment and the competition for survival. This moment marks a turning point for Buck, pushing him closer to embracing his primal instincts as he learns the importance of strength and resilience in a world where weakness can lead to death.