Animal liberationists do not separate out the human animal, so there is no rational basis for saying that a human being has special rights. A rat is a pig is a dog is a boy. They are all mammals

Attributed variants | "When it comes to having a central nervous system, and the ability to feel pain, hunger, and thirst, a rat is a pig is a dog is a boy" | "A rat is a pig is a dog is a boy. They’re all animals." — Washingtonian magazine, 1986 August 1