Morning sickness result in more live girl births, could be an adaptation to skew sex ratio. http://www.sciencedirect.com/science/article/pii/S1570677X16300028 …pic.twitter.com/pdkwsp17fS
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@sarahdoingthing @Paradigmian That idea came from Margie Profet, the "maverick thinker" who went missing: https://www.psychologytoday.com/articles/201204/the-mysterious-case-the-vanishing-genius …
@DegenRolf @Paradigmian I first read her article in the hardcover of this https://books.google.com/books?id=SxX4gRzOS6oC … haha
@sarahdoingthing @DegenRolf Maybe life history is part of it too. The risk of pathogens for the reward of good muscular dev in the child
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