Changes for page The Existence of Race

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38	38	Moreover, the level of between-group genetic differentiation humans *do* have (about 10–15% variation partitioned between races) is not biologically trivial. In population genetics, a statistic called F<sub>ST</sub> measures the genetic differentiation among populations. Humans’ inter-group F<sub>ST</sub> values (on the order of 0.1–0.2 between continental groups) are comparable to or greater than those seen between subspecies in many other animals. In fact, one analysis showed humans have *higher* genetic differentiation and heterozygosity than some species that are formally divided into multiple subspecies. For example, many mammal and bird species are split into subspecies for far smaller genetic gaps. Thus, by zoological criteria, it is reasonable to view major human populations as akin to subspecies.{{footnote}} https://someofmybestfriendsarewhite.tumblr.com/post/80846397928/race-is-biologically-non-existent-im-not-making#:~:text=of%20the%20framework%20of%20race,of%20potential%20human%20phylogenetic%20species{{/footnote}}
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40		-In sum, genetic evidence strongly supports the existence of biological racial groupings. Humans are a diverse, polytypic species – not in the sense of completely discrete, non-interbreeding groups (human races grade into each other and have fuzzy boundaries), but in the sense of statistical clusters of both genes and traits. These genetic clusters are real enough that they can be used predictively (e.g. for biomedical purposes or forensically) and reflect deep evolutionary history./foot
	40	+In sum, genetic evidence strongly supports the existence of biological racial groupings. Humans are a diverse, polytypic species – not in the sense of completely discrete, non-interbreeding groups (human races grade into each other and have fuzzy boundaries), but in the sense of statistical clusters of both genes and traits. These genetic clusters are real enough that they can be used predictively (e.g. for biomedical purposes or forensically) and reflect deep evolutionary history.{{footnote}} https://whyevolutionistrue.com/2022/07/19/once-again-are-races-social-constructs-without-scientific-or-biological-meaning/#:~:text=The%20meaning%20of%20the%20biological,evolutionary%20origin%20of%20group%20members{{/footnote}}
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42	42	## Morphological and Physical Differences Among Races##
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44	44	Beyond genetics, human races manifest observable physical differences that go far deeper than skin color. The most obvious is pigmentation (populations from sunny tropical latitudes evolved darker skin, while those from higher latitudes evolved lighter skin to synthesize vitamin D), but many other evolved traits distinguish human groups. Anthropologists and biologists have documented racial differences in body proportions, skeletal morphology, facial features, hair texture, metabolism, and other physiological traits, often as adaptations to different environments.
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46		-Skeletal Structure: Skulls and skeletal measurements vary sufficiently by ancestry that forensic anthropologists can often determine a person’s race or ancestry from skeletal remains with high accuracy. In actual forensic case studies, anthropologists correctly estimated ancestry \91% of the time using skeletal evidence. Under research conditions, using detailed craniometric measurements, accuracy rates between 81% and 99% have been reported for identifying an individual’s race from the skull. These successes are possible only because cranial shape and dimensions differ by population – for instance, features of the eye orbits, jaw, nasal aperture, etc., exhibit patterns characteristic of Africans, Europeans, East Asians, and so on. The existence of such consistent skeletal differences (so much so that “race” can be diagnosed from a skull) underscores that race has biological reality.
	46	+Skeletal Structure: Skulls and skeletal measurements vary sufficiently by ancestry that forensic anthropologists can often determine a person’s race or ancestry from skeletal remains with high accuracy. In actual forensic case studies, anthropologists correctly estimated ancestry ~~91% of the time using skeletal evidence.{{footnote}} https://pubmed.ncbi.nlm.nih.gov/28133721/#:~:text=skeletons%20of%20individuals%20from%20known,recent%20cases%20showed%20a%20significantly{{/footnote}} Under research conditions, using detailed craniometric measurements, accuracy rates between 81% and 99% have been reported for identifying an individual’s race from the skull.{{footnote}} https://en.wikipedia.org/wiki/Craniometry#:~:text=A%20few%20studies%20claim%20that,99%25%20accuracy%20depending{{/footnote}} These successes are possible only because cranial shape and dimensions differ by population – for instance, features of the eye orbits, jaw, nasal aperture, etc., exhibit patterns characteristic of Africans, Europeans, East Asians, and so on. The existence of such consistent skeletal differences (so much so that “race” can be diagnosed from a skull) underscores that race has biological reality./foot
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48	48	Specific skeletal and body-form differences follow ecogeographical rules. Populations from cold climates tend to have bulkier bodies and shorter limbs, conserving heat (an instance of Bergmann’s rule and Allen’s rule), whereas those from hot climates are more long-limbed and slender to dissipate heat. For example, within Africa, Nilotic peoples (such as the Dinka and Maasai of East Africa) are renowned for being extremely tall and lean – adult males often exceed 6 feet, with elongated limb proportions. This “elongated” physique is thought to be an adaptation for survival in hot, arid environments. In contrast, Arctic indigenous groups (like Inuit) tend to have stockier, compact bodies presumably adapted to cold stress (shorter limbs, more body fat insulation), though these groups were not mentioned in our sources. Even within more temperate regions, historical European races were differentiated by stature and build – e.g. the Nordic race was characterized as tall and long-legged, whereas the Alpine and Dinaric races of central Europe were more stocky on average.
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