I've speculated before that Polynesians, Icelanders, and perhaps Serbo-Croatians all evolved great size, muscular bulk, and short limbs as an adaptation to wet cold. I know that one of the most distinctive Polynesian physical traits, thick thighs, are also seen in Scandinavians.
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Awesome stuff. Would you agree that Polynesian size - although catalysed by “wet-cold” - was much more of a unique process than Northern Hemisphere adaptations? Those aforementioned groups are notorious for having a high % of Type I fibers
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I don't know about anything about Icelandic muscle fibers; the root cause of the selection is identical and the different similar physical manifestations so similar that I doubt there is anything unique about what happened to Polynesians.
End of conversation
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