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.
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.