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I can't find the numbers right now, but if the child is a girl the probability of her having children at all are substantially higher than for a boy. (Of course

by kaybe 8y ago

I can't find the numbers right now, but if the child is a girl the probability of her having children at all are substantially higher than for a boy. (Of course, the boy can have more, but historically many didn't have any.)

mruts 8y ago
Which is why it makes sense to spend more resources on boys than girls. Girls are less sensitive to resources in regards to reproduction. For every extra calorie given to a boy vs a girl, the amount that it will increase the number of offspring he/she will have is more for the boy. Of course, like you were saying, many more men than women will not be able to reproduce at all. This why we have 50/50 sex ratios. The girls mitigate or hedge the risk from boys.