Predatory animals must kill to eat. Humans, in contrast, have a choice; they need not eat meat to survive. Humans differ from nonhuman animals in being capable of conceiving of, and acting in accordance with, a system of morals; therefore, we cannot seek moral guidance or precedent from nonhuman animals. The AR philosophy asserts that it is just as wrong for a human to kill and eat a sentient nonhuman as it is to kill and eat a sentient human. To demonstrate the absurdity of seeking moral precedents from nonhuman animals, consider the following variants of the question: p>
"In Nature, animals steal food from each other; so why should it be wrong for humans [to steal]?" p>
"In Nature, animals kill and eat humans; so why should it be wrong for humans [to kill and eat humans]?" DG p>
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