Why Do We Have More Boys Than Girls?
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Most human parents-to-be assume that the sex of their child comes down to a flip of thechromosomal coin, with an equal chance of conceiving a boy or girl. But in reality,the odds aren’t even - for every 100 girls born, the world gains about 106 baby boys.Currently, that skewed sex ratio comes out to roughly 10 million more baby boys thangirls born worldwide each year. There are some countries where human meddling stacksthe odds even higher in favor of boys, but that doesn’t explain the fixed odds everywhereelse. The intrinsic boy/girl ratio is rigged by Mother Nature.In fact, it’s even more rigged than birth rates show – human conception results inabout 150 male zygotes for every 100 females! But there’s a rather tragic reason for thisbig biological boy-bias early on: male fetus...
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Most human parents-to-be assume that the sex of their child comes down to a flip of thechromosomal coin, with an equal chance of conceiving a boy or girl. But in reality,the odds aren’t even - for every 100 girls born, the world gains about 106 baby boys.Currently, that skewed sex ratio comes out to roughly 10 million more baby boys thangirls born worldwide each year. There are some countries where human meddling stacksthe odds even higher in favor of boys, but that doesn’t explain the fixed odds everywhereelse. The intrinsic boy/girl ratio is rigged by Mother Nature.In fact, it’s even more rigged than birth rates show – human conception results inabout 150 male zygotes for every 100 females! But there’s a rather tragic reason for thisbig biological boy-bias early on: male fetus...
