What are the main differences between White Fang’s life as Gray Beaver’s dog and his life as Beauty Smith’s dog?

Gray Beaver treats White Fang as a member of the tribe. He does not, however, show him affection. He does provide him with rewards if he does his job properly.

Beauty Smith is violent with White Fang and abuses him constantly. He wants White Fang to be a killer.

Isaida paragragh please