Incest, homosexuality

[Cego_Colher]

Likewise I disapprove of polygamy because it often leads to intense jealously between the different wives (women generally don’t like sharing their man with other women). Along with the fact that often polygamy has been used for men to dominate and control women. Also not to mention that humans are a biologically serial monogamous (adultery has been biologically beneficial for us) species.

I would just like to interrupt here and say that I believe it is far more likely that the men would be jealous about sharing their wife(ves) with other men. I read somewhere, that in monogamous relationships men who cheat are more likely to be forgiven then women. men don't want to be raising another man's kid. If true in a polygamous relationship this would have to do with the fact that woman have to carry the baby for nine months. if it is not one man's baby he can't have one with her till after she gives birth.
(that being said I probably wouldn't forgive my guy for cheating.) but maybe it's equal, but I wouldn't say women would be more jealous. They might be more vicious about their jealousy, though.

It also seems like it would be less productive for a woman to have multiple husbands, because she can only have one child at a time. and it's not like she can lay eggs.
Of course, that's not what this discussion is about.