The last dog had been driven back. The hubbub died down. And White Fang licked his hurts and meditated upon this, his first taste of pack-cruelty and his introduction to the pack. He had never dreamed that his own kind consisted of more than One Eye, his mother, and himself. They had constituted a kind apart, and here, abruptly, he had discovered many more creatures apparently of his own kind. In this passage, how does White Fang change in response to the new setting? He realizes that dogs are friendlier than wolves.
He realizes that there are many more dogs than just his family.
He realizes that dogs can bite harder than wolves.
He realizes that he is a better fighter than the other dogs in the pack.