 While evolutionary facts may do little to illuminate the content of morality in the normative sense (apart from shedding light on morally relevant facts), they are sometimes thought to tell us something about the existence and nature of morality in the normative sense. (See section 1.2 for the notion of morality in the normative sense.) A number of philosophers have claimed that evolutionary theory can be used to debunk certain metaethical theories and perhaps to support others. One relatively modest project along these lines would be to use evolutionary biology to undermine Aristotelian appeals to natural teleology in human life to account for ethical facts, along the lines of Foot (2001). This evolutionary-based critique of “teleological naturalism” in ethics (FitzPatrick 2000) is discussed in the