Can Animals Be Moral?

From eye-witness accounts of elephants apparently mourning the death of family members to an experiment that showed that hungry rhesus monkeys would not take food if doing so gave another monkey an electric shock, there is much evidence of animals displaying what seem to be moral feelings. But despite such suggestive evidence, philosophers steadfastly deny that animals can act morally, and for reasons that virtually everyone has found convincing. In Can Animals be Moral?, philosopher Mark R...