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Unformatted text preview: seen in Upper Paleolithic Europeans. Both western Asian groups had roughly even proportions of older and
younger adults, putting their OY ratios between those of the
Neandertals and early modern humans from Europe.
Compared with European Neandertals, a much larger proportion of western Asian Neandertals (and modern humans)
lived to be grandparents. This is not unexpected—the more
temperate environment of western Asia would have been far
easier to survive in than the harsh ecological conditions of Ice
Age Europe. Yet if the more temperate environment of western
Asia accounts for the elevated adult survivorship seen in the
Middle Paleolithic populations there, the longevity of Upper
Paleolithic Europeans is even more impressive. Despite living
in much harsher conditions, the Upper Paleolithic Europeans
had an OY ratio more than double that of the Middle Paleolithic modern humans.
S enior Mo M ent S we do not know exactly what those Upper Paleolithic Europeans started doing culturally that allowed so...
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- Spring '12