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2 posts tagged with evolution by grobstein.
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More humans are alive today than had ever lived before 10,000 BC

The human population of Earth has almost always been about 50,000. [more inside]
posted by grobstein on Jan 19, 2010 - 85 comments

Billionaires have more sons

Billionaires have more grandchildren through their sons than through their daughters, because the status advantage is more reproductively valuable to the sons. Therefore, it would be adaptive for the mothers of their children to bear more sons than daughters. But surely that can't be; mothers can't control the sex of their children. Oh but so it is: billionaires have 60% male children. [more inside]
posted by grobstein on Jan 17, 2009 - 69 comments

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