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Sub\u2010Saharan African populations have the greatest amount of human genetic variation. However, migration allowed populations to accumulate genomic variation associated with living in the arctic, higher altitudes, disease resistance, living on high fat or starchy foods, surviving toxic arsenic\u2010rich environments, lactase persistence, changing skin pigmentation, gaining thicker hair, and changing height and body mass index. Understanding these aspects of human evolution forces us to reconsider our notion of the \u201cnormal.\u201d Thus, normal for our species includes having dark melanic skin, brown eyes, and brown tightly curled hair. Derived features include lighter skin (~10\u00a0000 YBP), blue eyes (~6000 YBP), and blond straight hair (~6000 YBP). Yet in reality, \u201cnormal\u201d has no meaning for a species that inhabits such a broad geographic range. Natural selection and genetic drift have genetically differentiated human populations in ways that impact our morphological and physiological traits. The genomic differentiation is small and does not allow any unambiguous classification of human populations into biological races. Despite these now well\u2010established facts of human variation, significant confusion associated with Eurocentric notions of the normal still persist in both the lay public and various professions such as biomedical research and clinical practice.<\/jats:p>","DOI":"10.1002\/ajhb.23658","type":"journal-article","created":{"date-parts":[[2021,8,3]],"date-time":"2021-08-03T16:44:50Z","timestamp":1628009090000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Human biological variation and the \u201cnormal\u201d"],"prefix":"10.1002","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8446-1709","authenticated-orcid":false,"suffix":"Jr.","given":"Joseph L.","family":"Graves","sequence":"first","affiliation":[{"name":"Department of Biology North Carolina A&amp;T State University  Greensboro North Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,8,3]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature15393"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-018-08147-0"},{"key":"e_1_2_10_4_1","volume-title":"Principles of zoology: Touching on the structure, development, distribution, and natural arrangement of the races of animals, living and extinct","author":"Agassiz L.","year":"1848"},{"key":"e_1_2_10_5_1","volume-title":"Race: The origins of an idea, 1760\u20131850","author":"Augstein H. 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