We’re Only Beginning To Understand Why Humans Have a Skewed Sex Ratio

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The ratio of newborn boys to girls slightly and consistently leans toward males: around 106 boys are born for every 100 girls. If that seems odd to you, it should : the way sperm form suggests that the ratio of X-sperm to Y-sperm should be exactly 50:50–and scientists are only now beginning to understand why the skew occurs. Read more…

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We’re Only Beginning To Understand Why Humans Have a Skewed Sex Ratio

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