Abstract

Immanuel Kant, in a much-maligned view, thought that we could only have indirect duties to nonhuman animals who have no inherent moral value since they lack rationality. While there are various responses to this worrisome position, no one seems to consider that animals could conceivably qualify as having rationality, even on Kantian high standards. Animals engage in various activities that could be taken as indicators of the core aspects of rationality that Kant requires for having absolute worth. While these animal behaviors will not prove that animals are rational, we must remember that we also cannot prove that other humans are rational. Instead, my goal is only to provide a basis for a precautionary moral principle that requires treating animals as minimally rational, given that they might be. On this basis, we ought to accept some direct Kantian duties for the respectful treatment of animals.