This made me stop reading: > In such a way, the competing interests of the father (‘large strong children’) and the mother (‘survive pregnancy’) are balanced.

This made me stop reading: > In such a way, the competing interests of the father (‘large strong children’) and the mother (‘survive pregnancy’) are balanced. Citation needed. This seems unnecessary antagonizing. I don't think there is an evolutionary interest of the father that the mother does not survive pregnancy. Without nursing babies had probably very low chances in the past and are still at high risk in many countries. When thinking about this across multiple generations this makes even less sense. Since all those guys who pass large strong genes to their children will have no children at all because the mothers die during pregnancy or birth. Which is a high risk scenario for the unborn children. Additionally the mother also has an interest in large strong children. They are her offspring too. There is more a balance between the fetus taking everything and the mother trying not to decay too fast because of that. This is completely different to this.