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)

It is nowadays a dominant opinion in a number of disciplines (anthropology, genetics, psychology, philosophy of science) that the taxonomy of human races does not make much biological sense. My aim is to challenge the arguments that are usually thought to invalidate the biological concept of race. I will try to show that the way “race” was defined by biologists several decades ago (by Dobzhansky and others) is in no way discredited by conceptual criticisms that are now fashionable and widely (...) regarded as cogent. These criticisms often arbitrarily burden the biological category of race with some implausible connotations, which then opens the path for a quick eliminative move. However, when properly understood, the biological notion of race proves remarkably resistant to these deconstructive attempts. Moreover, by analyzing statements of some leading contemporary scholars who support social constructivism about race, I hope to demonstrate that their eliminativist views are actually in conflict with what the best contemporary science tells us about human genetic variation. (shrink)

The aim of this article is to develop an argument against metaphysical debates about the existence of human races. I argue that the ontology of race is underdetermined by both empirical and non-empirical evidence due to a plurality of equally permissible candidate meanings of "race." Furthermore, I argue that this underdetermination leads to a deflationist diagnosis according to #hich disputes about the existence of human races are non-substantive verbal disputes. $hile this diagnosis resembles general deflationist strategies in contemporary metaphysics" I (...) show that my argument does not presuppose controversial metametaphysical assumptions. (shrink)

Although there once was a general consensus among race scholars that applying race categories to humans is biologically illegitimate, this consensus has been erased over the past decade. This is largely due to advances in population genetics that allow biologists to pick out genetic population clusters that approximate some of our common sense racial categories. In this paper, I argue that this new ability really ought not undermine our confidence in the biological illegitimacy of the human races. Unfortunately, the claim (...) that races are biologically legitimate is ambiguous—the sense I will be concerned with here holds that the human species can be divided into biological subspecies. Sesardic and Andreasen have both argued that the cluster results are evidence for subspecies within the human population. I show the cluster results are in fact evidentially inert relative to each author’s preferred subspecies concept. I then sketch the kinds of biological facts that could be used to adjudicate whether human subspecies have existed in the past. (shrink)

This paper distinguishes three concepts of "race": bio-genomic cluster/race, biological race, and social race. We map out realism, antirealism, and conventionalism about each of these, in three important historical episodes: Frank Livingstone and Theodosius Dobzhansky in 1962, A.W.F. Edwards' 2003 response to Lewontin (1972), and contemporary discourse. Semantics is especially crucial to the first episode, while normativity is central to the second. Upon inspection, each episode also reveals a variety of commitments to the metaphysics of race. We conclude by interrogating (...) the relevance of these scientific discussions for political positions and a post-racial future. (shrink)

Support for the biological concept of race declined slowly but steadily during the second half of the twentieth century. However, debate about the validity of the race concept has recently been reignited. Genetic-clustering studies have shown that despite the small proportion of genetic variation separating continental populations, it is possible to assign some individuals to their continents of origin, based on genetic data alone. Race naturalists have interpreted these studies as empirically confirming the existence of human subspecies, and by extension (...) biological races. However, the new racial naturalism is not convincing. The continental clusters appealed to by race naturalists are arbitrary and superficial groupings, which should not be elevated to subspecies status. Moreover, the criteria applied to humans are not consistent with those used to define subspecies in nonhuman animals, and no rationale has been given for this differential treatment. (shrink)

This article challenges the orthodox view that there is and can be no scientifically valid concept of race applicable to human beings by presenting a candidate scientific concept of biological race. The populationist concept of race specifies that a “race” is a subdivision of Homo sapiens—a group of populations that exhibits a distinctive pattern of genetically transmitted phenotypic characters and that belongs to an endogamous biological lineage initiated by a geographically separated and reproductively isolated founding population. The viability of the (...) PRC is shown by demonstrating its capacity to withstand a wide range of objections. A common theme is that the objections turn on misconceptions of the idea of a scientific concept of race. The final section argues that the PRC will not foster racism. (shrink)

Increased attention paid to inter-group genetic variability following completion of the Human Genome Project has provoked debate about race as a category of classification in biomedicine and as a biological phenomenon at the level of the genome. Philosophers of science favor a metaphysical approach relying on natural kind theorizing, the underlying assumptions of which structure the questions asked. Limitations arise the more metaphysically invested and less attuned to scientific practice these questions are. Other questions—arguably, those that matter most socially and (...) politically—remain unasked, not merely overlooked but systematically ignored and even foreclosed. Race fails as a postulated natural kind because it fails to meet expectations that as a category of classification it furnish an authoritative taxonomy that by depicting fundamental divisions in nature is conducive to fulfilling far-ranging explanatory aims. Racial, ethnic, and other group designations may nonetheless be projectible insofar as they support inductive inferences in biomedicine, but this does not render them any less social. Indeed, the statistical, contingent, accidental, localized, and interest-relative bases of such inferences serve to undercut the dichotomizing of race as either biological reality or social construct and favor the adoption of a pragmatic approach. (shrink)

Increased attention paid to inter-group genetic variability following completion of the Human Genome Project has provoked debate about race as a category of classification in biomedicine and as a biological phenomenon at the level of the genome. Philosophers of science favor a metaphysical approach relying on natural kind theorizing, the underlying assumptions of which structure the questions asked. Limitations arise the more metaphysically invested and less attuned to scientific practice these questions are. Other questions—arguably, those that matter most socially and (...) politically—remain unasked, not merely overlooked but systematically ignored and even foreclosed. Race fails as a postulated natural kind because it fails to meet expectations that as a category of classification it furnish an authoritative taxonomy that by depicting fundamental divisions in nature is conducive to fulfilling far-ranging explanatory aims. Racial, ethnic, and other group designations may nonetheless be projectible insofar as they support inductive inferences in biomedicine, but this does not render them any less social. Indeed, the statistical, contingent, accidental, localized, and interest-relative bases of such inferences serve to undercut the dichotomizing of race as either biological reality or social construct and favor the adoption of a pragmatic approach. (shrink)

In popular articles that play down the genetical differences among human populations, it is often stated that about 85% of the total genetical variation is due to individual differences within populations and only 15% to differences between populations or ethnic groups. It has therefore been proposed that the division of Homo sapiens into these groups is not justified by the genetic data. This conclusion, due to R.C. Lewontin in 1972, is unwarranted because the argument ignores the fact that most of (...) the information that distinguishes populations is hidden in the correlation structure of the data and not simply in the variation of the individual factors. The underlying logic, which was discussed in the early years of the last century, is here discussed using a simple genetical example. (shrink)

Two families of mathematical methods lie at the heart of investigating the hierarchical structure of genetic variation in Homo sapiens: /diversity partitioning/, which assesses genetic variation within and among pre-determined groups, and /clustering analysis/, which simultaneously produces clusters and assigns individuals to these “unsupervised” cluster classifications. While mathematically consistent, these two methodologies are understood by many to ground diametrically opposed claims about the reality of human races. Moreover, modeling results are sensitive to assumptions such as preexisting theoretical commitments to certain (...) linguistic, anthropological, and geographic human groups. Thus, models can be perniciously reified. That is, they can be conflated and confused with the world. This fact belies standard realist and antirealist interpretations of “race,” and supports a pluralist conventionalist interpretation. (shrink)