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The 'Average' Northwest African Phenotype/Origins of Northwest Africans
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[QUOTE]Originally posted by zarahan- aka Enrique Cardova: [QB] [i]Using the Holocene biogeography and palaeohydrology of the Sahara as an analogue for the MIS5 humid period, it is likely that an interconnected waterway would have been available for faunal and human dispersal. This humid period corresponds very closely with the age of the first modern human occupation of the North African coast (45) and the Levant (46) by sub-Saharan populations, who may have been crossing the Sahara at this time (9)." "Reanalysis of the Saharan zoogeography (SI Appendix, Section 1 and Table S1) suggests that many animals, including water-dependant creatures such as fish and amphibians, dispersed across the Sahara recently. For example, 25 North African animal species have a spatial distribution with population centers both north and south of the Sahara and small relict populations in central regions. This distribution suggests a trans-Saharan dispersal in the past, with subsequent local isolation of central Saharan populations during the more recent arid phase. If a diverse range of species (including fish) can cross the Sahara, it is impossible to envisage the Sahara functioning as barrier to hominin dispersal." [/i] --Drake et al 2010. Ancient watercourses and biogeography of the Sahara explain the peopling of the desert. PNAS 2011, vol. 108, no 2. 458–462 ^^Good reference, undermining certain claims re the "barrier" of the Sahara, as if it were some sort of neat "apartheid" line in Africa. [/QB][/QUOTE]
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