I'm beginning to feel that London revels in cruelty and has much respect for the "survival of the fittest". Don't get me wrong, Buck is a great dog, but it seems to me that London pays a lot of attention to ancestry, genes, and race (and, most importantly, discriminates on it). Now that I've read both White Fang and The Call of the Wild I don't think I'll be reading any more of his books; he really tips my racism sensor and I've been annoyed enough by this.

For what it's worth, I liked the ending.