Supporters argue that Regan's argument for animal rights does not rely on a radical new theory of ethics, but that it follows from a consistent application of moral principles and insights that many of us already hold with respect to the ethical treatment of human beings.
Støtter siger at Regans argumenter for dyrs rettigheder ikke gør brug af en ny, radikal teori om etik, men at den følger en jævn anvendelse af moralske principper og intuition, som mange af os allerede forbinder med den etiske behandling af mennesker.