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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@DegenRolf @Paradigmian I first read her article in the hardcover of this https://books.google.com/books?id=SxX4gRzOS6oC … haha
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