What is the name of the main canine character in Jack London's call of the wind?

The main canine character in Jack London's "The Call of the Wild" is Buck. He is a large, powerful dog who is part St. Bernard and part Scotch shepherd. The story follows Buck's journey as he is abducted from his comfortable domestic life and forced into the brutal realities of life as a sled dog in the Yukon during the Gold Rush. Throughout the narrative, Buck taps into his primal instincts and ultimately answers the call of the wild.