" Why not start butchering and eating primates, too? Once accepted, the logic of the factory farm knows no limits. Indeed, every argument we have heard in defense of other cruelties is just as easily applied here. This will help us to conserve" primates, to keep up the stock. We need an "incentive" to keep primates alive, a little bonus for all our good works. Primates, too, must "pay their own way." Throughout Africa, chimpanzees, orangutans, and even gorillas are picked off anyway by poachers and hunters - who illegally ship at least a thousand tons of primate meat every year to Britain alone. Why not make the whole thing more orderly, systematic, and profitable with primate farms? "

― Matthew Scully , Dominion: The Power of Man, the Suffering of Animals, and the Call to Mercy