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Ancient Egyptian DNA from 1300BC to 426 AD
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[QUOTE]Originally posted by Ish Gebor: [QB] [QUOTE]Originally posted by Cass/: [qb]This is like how Afrocentrists fixate on limb metrics to try to show Egyptians as "tropically adapted", but ignore body-breadths which show Egyptians were not. Furthermore, the limb metric data actually shows a clinal pattern that doesn't even support the idea Egyptians had tropically adapted limbs.. [/qb][/QUOTE]Actually Raxter says about body-breadths: [QUOTE] "Ancient Egyptians have more tropically adapted limbs in comparison to body breadths, [b]which tend to be intermediate when plotted against higher and lower latitude populations."[/b] "Consequently, regardless of stature, [b]groups living in regions with similar climates will have similar body breadths.[/b]" "Populations in colder regions have wider bodies and smaller SA/BM and those in warmer areas possess narrower bodies and larger SA/BM." [/QUOTE]The above intermediacy makes sense, since Northeast Africa is between the region of the Sahel and Mediterranean. She closes with: [QUOTE] These results may reflect that limb length is more plastic compared to body breadth. [/QUOTE]While it is more likely the opposite. Body breadth adapts due to influences of the environment and other conditions. [QUOTE][b]"Furthermore bi-iliac breadth appears to change slowly over time, likely due to multiple factors[/b] (thermoregulation, obstetrics, locomotion) influencing its shape (Ruff 1994; Auerback 2007) …" [i]"Generally narrower body breaths of the foragers contrast markedy with the wider-bodied agriculturalists. Although bi-iliac breadth has been argued to be stable over long periods of time (Auerbach, 2007), this shift in mean body breath may be indicative of changes correlated with subsistence economy." [/i] [/QUOTE]—Pihasi & Stock. 2011. Human Bioarchaeology of the Transition to Agriculture [QUOTE][b]"Thus he concluded that it must take more than 15,000 years for modern humans to fully adapt to a new environment (see also Trinkaus, 1992).[/b] This suggests that body proportions tend not to be very plastic under natural conditions, and that selective rates on body shape are such that evolution in these features is long-term."[/QUOTE]—Holliday T. (1997). Body proportions in Late Pleistocene Europe and modern human origins. Jrnl Hum Evo. 32:423-447 [QUOTE] Tropically adapted groups also have relatively longer distal limb elements (tibia and radius, as compared to femur and humerus) than groups in colder climates. [/QUOTE]—Matt Cartmill, ‎Fred H. Smith - 2011 - ‎Social Science How does this translate: [QUOTE] The Paleolithic The Terminal Paleolithic (21000-9000 BCE) in the Nile Valley was marked by considerable changes in lithic technology and a widening of dietary breadth when compared to previous periods. During this period, microblade techniques in stone tool making became widespread. Several lithic industries used the same basic bladelet technology but great variability existed on a local level in use of different tool types. Such variability suggests seasonal or specialized activities, most probably organized around fishing and the hunting of large game (Clark 1971, 1980, Hassan 1980). One of the longest-lived lithic industries was the Qadan (13000-4500 BCE) in Lower Nubia. [/QUOTE] [/QB][/QUOTE]
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