A family's life is disrupted by an unexpected present from their father—some socks? A box of candy? Nope. It's a young boy of indeterminate origins. Despair, abuse, and tragedy ensue. Don't worry, there's a little light at the end of the very end of the tunnel: animals are all over this text.
And its not just animals that run around the pages of Wuthering Heights: so do animal metaphors. Our hero Heathcliff, for example, is described as a "fierce, pitiless, wolfish man."