This sheep escaped a farm and spent 6 years in the mountains, during which time he grew 60 pounds of wool. Predators tried to eat him, but their teeth could not penetrate the floof. You don't have to turn hard to survive the wolves, just be really, really soft and fluffy.
https://files.mastodon.social/media_attachments/files/113/031/471/458/375/035/original/8cd07d2848076ef8.jpeg