In this article I show that population geneticists are acknowledging a kind of biological population that has hitherto been unappreciated by philosophers. The new population talk occurs when population geneticists call continent-level human genetic clusters ‘populations’ in population structure research. My theory is that the kind of population being referred to is the K population, which is, roughly, a biological population whose members are united by common genomic ancestry and in which population membership is graded. After presenting and defending the (...) theory, I show that the K population is indeed a kind of biological population. Finally, I address likely objections. (shrink)

In the early 2000s, Esteban Burchard and his colleagues defended a controversial route to the view that there’s a racial classification of people that’s useful in medicine. The route, which I call ‘Burchard’s route,’ is arguing that there’s a racial classification of people that’s useful in medicine because, roughly, there’s a racial classification with medically relevant genetic differentiation :1170–1175, 2003). While almost all scholars engaged in this debate agree that there’s a racial classification of people that’s useful in medicine in (...) some way, there’s tremendous controversy over whether any racial scheme is useful in medicine because there are medically relevant genetic differences among those races : 564–565, 2016). The goal of this paper will be to show that Burchard’s route is basically correct. However, I will use a slightly different argument than Burchard et al.’s in order to provide a firmer foundation for the thesis, both metaphysically and genetically. I begin by reviewing Burchard’s route and its critics. Second, I present an original argument for establishing Burchard et al.’s conclusion using a Burchard-like route. I call it ‘Spencer’s route’. I reply to major objections along the way, and I end with a summary. (shrink)

It has become customary among philosophers and biologists to claim that folk racial classification has no biological basis. This paper attempts to debunk that view. In this paper, I show that ‘race’, as used in current U.S. race talk, picks out a biologically real entity. I do this by, first, showing that ‘race’, in this use, is not a kind term, but a proper name for a set of human population groups. Next, using recent human genetic clustering results, I show (...) that this set of human population groups is a partition of human populations that I call ‘the Blumenbach partition’. (shrink)

Real kinds or categories, according to conventional wisdom, enter into lawlike generalizations, while nominal kinds do not. Thus, gold but not jewelry is a real kind. However, by such a criterion, few if any kinds or systems of classification employed in the social science are real, for the social sciences offer, at best, only restricted generalizations. Thus, according to conventional wisdom, race and class are on a par with telephone area codes and postal zones; all are nominal rather than real. (...) I propose an account of real kinds that recognizes the current reality of race but not zip codes and shows how a kind can be both constructed and real. One virtue of such an understanding of realism is the light shed on our current practice of racial classification. Race is not a real biological kind but neither is race a myth or illusion. However, the question of whether a social kind is real is separate from whether the category is legitimate. W. E. B. Du Bois maintained that while there are no biological races, race is real and should be conserved. My aim, in this paper, is not to argue for the legitimacy or conservation of race but to defend Du Bois's idea that kinds of people can be both made up and real and provide an understanding of realism that does justice to the social sciences. (shrink)

The idea that reference is multiply grounded allows causal-historical theories of reference to account for reference change. It also threatens the stability of reference in light of widespread error and confusion. I describe the problem, so far unrecognised, and provide a solution based on the phenomenon of semantic deference, which I differentiate from reference-borrowing. I conclude that deference has an authentic foundational semantic role to play.