posted
So as other posters have noted when reviewing tropical adaptions from AE, the tropics also includes parts of Asia. So are there adaptations (spanning an extended period if possible to note), that demonstrate adaptions to aspects of any African ecosystems that didn't exist in the (southern) Arabian peninsula?
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posted
Another way to potentially look at this position is to demonstrate a successive archeological record that demonstrates cultural and biological continuity within the area up to a certain point.
quote: "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).
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."
—Holliday T. (1997). Body proportions in Late Pleistocene Europe and modern human origins. Jrnl Hum Evo. 32:423-447
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