Tradition is not the worship of ashes, but the preservation of fire. ― Gustav Mahler
Tradition is not the worship of ashes, but the preservation of fire. ― Gustav Mahler
There's no evidence that people biologically evolved that way, if you're talking about evolution in a "cultural" sense then that's completely different.
A man doesn't suddenly stop feeling horny toward other women the second he gets married or enters a relationship, the biological urge is still there (as it is for women too, women aren't 'monogamous' either).
(Plus if humans had biologically evolved past polygamy at some point in their evolution then how would it have been a cultural norm in many societies historically?)
Much of the scientific literature says it was evolutionary. Part of it had to do with shortages in the availability of females. Part of it had to do with protecting and keeping children alive. You'll have to expose yourself to all the literature out there and freely available.
That is not to say that society didn't enter into it and select for monogamy nor that culture didn't also enter into it in terms of the much later appearance of the institution of marriage.
Also, a certain though small percentage of mammals are monogamous. Animals can be social, but hardly can be said to have culture--let alone sit down as a group and discuss and decide to be monogamous as a social construct would imply.
So stop it with the postmodern everything's a social construct stuff already.
Tradition is not the worship of ashes, but the preservation of fire. ― Gustav Mahler