You're right, it IS genetic. I'm not sure if they know the reason but there are indeed more girls than boys born, and in an environment where both sexes receive equally good care from the beginning, women end up as a majority. Also the male mortality tends to be a bit higher on younger age at least, and even later if prenatal care for pregnant mothers is good.
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You're right, it IS genetic. I'm not sure if they know the reason but there are indeed more girls than boys born, and in an environment where both sexes receive equally good care from the beginning, women end up as a majority. Also the male mortality tends to be a bit higher on younger age at least, and even later if prenatal care for pregnant mothers is good.
I still remember my biology!
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