How was Buck different from other dogs on the Judge's farm?

Buck's notable difference from other dogs on the Judge's farm lies in his ability to roam freely around the entire property. This freedom is a reflection of his special status in the household, as he is not merely a farm dog but is treated more like a member of the family. His capacity to explore and enjoy the outdoors without restrictions sets him apart from the other dogs, who may have more confined living situations and rules affecting their movements.

The options concerning restrictions—such as not being allowed in or out of the house—do not apply to Buck, as he enjoys a greater sense of liberty compared to his peers. This distinction is crucial to understanding Buck's character and position before he is thrust into the harsh realities of the wilderness, where those privileges no longer exist.