Abstract

Aquinas famously held that only intellectual beings can grasp the natures or essences of things and cognize universals per se. Below these intellectual beings, however, were the non-human animals who shared many of the interior sense faculties in common with man; such animals’ highest sense was merely what is called the estimative power. Aquinas’s account of animal cognition has largely been ignored in contemporary biological research, although hopes for a resurgence have been emerging in the Thomistic world. In this paper I seek to explicate Aquinas’s account of animal cognitive activities, particularly by explicating a more detailed account of animal cognitive action as found in the biological works of Aristotle known by Aquinas. I then turn to various contemporary biological findings to show that many purported modern discoveries (like dolphins rescuing a man or recognition of social hierarchies) shouldn’t be so surprising after all. Many such cognitive acts were already there in the texts of Aristotle read by Aquinas.