80
Nicholas Wade, “Human Have Spread Globally, and Evolved Locally,” New York Times, June 26, 2007.
81
Noah A. Rosenberg et al., “Genetic Structure of Human Populations,” Science 298, no. 5602 (Dec. 20, 2002): 2381–85.
82
Frank B. Livingstone and Theodosius Dobzhansky, “On the Non-Existence of Human Races,” Current Anthropology 3, no. 3 (June 1962): 279.
83
David Serre and Svante Pääbo, “Evidence for Gradients of Human Genetic Diversity Within and Among Continents,” Genome Research 14 (2004),1679–85.
84
Noah A. Rosenberg et al., “Clines, Clusters, and the Effect of Study Design on the Inference of Human Population Structure,” PLoS Genetics 1, no. 6 (2005): 660–71.