Given that it relies on claims about human nature, has Aristotelian virtue ethics (henceforth AVE) been undermined by evolutionary biology? There are at least four objections which are offered in support of the claim that this is so, and I argue that they all fail. The first two (Part 1) maintain that contemporary AVE relies on a concept of human nature which evolutionary biology has undercut and I show this is not so. In Part 2, I try to make it clear that Foot's Aristotelian ethical naturalism, often construed as purporting to provide virtue ethics with a foundation, is not foundationalist and is not attempting to derive ethics from biology. In Part 3, I consider the other two objections. These do not make a misguided assumption about Aristotelian ethical naturalism's foundational aspirations, nor question AVE's use of the concept of human nature, but maintain that some of AVE's empirical assumptions about human nature may well be false, given the facts of our evolution. With respect to these, I argue that, as attempts to undermine AVE specifically, they fail, though they raise significant challenges to our ethical thought quite generally.