5 - Humans and Other Animals

Summary

How we should treat nonhuman animals is one of the most important environmental questions that we face. Although most people think of humans as having a qualitatively different moral status than nonhuman animals, there is no morally significant criterion for membership in the moral community that is satisfied by all and only humans. If the criterion is demanding enough (e.g., language), it excludes some humans; if it is permissive enough to include all humans (e.g., sentience), it includes some nonhumans. The discovery that “speciesism” is indefensible opens the door to a range of strong animal-protection philosophies – for example, Peter Singer’s “animal liberation,” which is founded on utilitarianism, and Christine Korsgaard’s “fellow creatures” view, which has a Kantian foundation. These views converge in concluding that many of the ways that we treat animals are wrong.