BobG said:
If physical sexual desire is the only thing motivating sexual and mating behavior, then an attitude of "care for the kids of the one you're with" would be a perfectly natural genetic adaption. Genetic socialism in a way.
Not really, because the evolutionary drive is not derived from sexual pleasure. Rather than being derived, it drives the desire for the opposite sex, for the purpose of propagating genetic material.
BobG said:
Of course, if physical sexual desire were the only motivation, then he wouldn't hang around the woman and her kids, anyway.
This does happens when the female chooses one partner for the genes, the "nature" , and
another partner for "nurture". While it may be condemned by social rules, it is a highly successful evolutionary strategy, as long as you can get away with it.
And yes, the other way around, socially the male who fools around and impregnates N females may be considered as a jerk, sociopath, whatever, but at the end of the day, this is again an example of excellent reproductive strategy. What do you want more than having another male providing for your offspring ? You are free from the effort to provide during rearing period of the child, and you can go instantly for other females. No strings.
Society will probably able to tolerate a certain percentage of those highly successful individuals (both man and women) without any side effects. They'll just blend unknowingly for others.
I don't condone here this kind of behavior. I only say it's a highly efficient reproductive strategy for both man and women, as long as you can get away with it. And due to human nature and social rules, and how easy most of the man can be conned, it's simpler to get away with it than it may appear, IMO.
There are downsides to this strategy, and unfortunately they are more sever for women than man. She will loose more likely the current provider. It's garbagety, and nature was really unfair to women here.
Nature has provided safeguards against this behavior in women. In fact, not against the behavior per se, but against a man caring unwillingly for another persons genetic material.
It appears that immediately after birth, the children do reassemble the father much more than the mother. It's a safeguard. Mother it;s always known, she gives birth. Father is more elusive.
There is also the behavior of the female's family after giving birth. They are most likely statistically to say "oh.. the child looks like it's father" than the male's family. It's yet again a safeguard, but this time acting on behalf of the mother. Females also appear more prone to attribute a child to the current partner of the women. Interestingly enough, I had a personal experience with this. 15 years ago I was dating a women which had a child. We where traveling in a train, and we got some social interaction going on. There was a women there which was melted after my partner's kid, and she considered him great, and told me "this kid is a copy or yourself ... " or something like that. Needless to say, the child was bearing no physical resemblance whatsoever to me. He was a carbon copy of his maternal grandfather, if anything.
Later on, I have observed the same behavior in other females judging children. I realize that my observations are empirical, and has no real scientific value.
There are downsides to this strategy. Unfortunately, they are more of a consequence to a women than to man. The women may loose the provider, which is of a important consequence. It's a gamble, but players will go for it.
BobG said:
The need for emotional support would be a rather interesting and effective adaption that would encourage the male to hang around and help support the kid(s), regardless of whose kids he's supporting. And "caring for the kids of the one you're with" would be the most efficient adaption if the most successful males were having sex with as many women as possible.
I have yet to see a single *male* doing this. Unless he is caring for a mix of his children and other mans children, I don't see it happen.
The issue is, why would you doit ? Except for earning a Darwin Award. You got involved with a female who is reluctant to carry your kids ? Say goodbye and move on. The sea is full of fish. Get another female.
The efficient strategy for males is not carrying for another man's child. It is having your own children being cared for by another man.
BobG said:
The desire to support only your own kids would be one that would encourage monogamous relationships for both sexes.
Exactly ! But as I said before, there is a percentage of individuals who will go for more efficient strategies, despite the risks. Monogamy is the safe strategy. But not always the most efficient one.I want to be clear of one thing. What i wrote here should not be considered in any way as condoning what society calls "immoral behavior". They are my views on evolutionary behavior. They should not be considered excuses for a "immoral behavior".