Why did little arliss throw rocks at travis?

Little Arliss threw rocks at Travis in "The Call of the Wild" as a way to express his frustration and seek attention. He was feeling neglected and wanted to engage Travis, who was focused on his work. Arliss's actions reflect the playful yet mischievous nature of a young child wanting to connect with his older brother. Ultimately, this moment underscores the sibling dynamics and the challenges of growing up in a rugged environment.