Re: Monogomy/Polygymy
Yes. Men are naturally polygamous, and woman monogomous. From an evolutionary perspective men do best this way, as having kids for them is a very low investment (some semen), whereas for woman it is a much bigger commitment of eggs (eggs are much larger than sperm), carrying the child to term, as well as taking care of the child after birth.
Of course the offspring whose father takes care of him is also more likely to survive, so there is a benefit for sticking around and taking care of the kids. This kind of leads some men to sleep around and have as many kids as possible, and some other guys to want to raise a family and make sure a few of his offspring do very well, with the former usually having more desireable traits (looks, atheletic ability, IQ). This kind of leads woman to want to fuck the bad boy, and then later want a responsible caring partner to help her raise the kids.
Of course its more complicated than this and there are a whole bunch of other factors, but that is the gist of it.
edited for grammer
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