I speculate that, at least in the western half of Eurasia, Europe and Africa, there is a "cline" running from, say, Finland in the north to sub-Saharan Africa in the south, of decreasing personal tendency toward monogamousness.    From Wordnik.com.  [More on polygamy in France] Reference

I don’t understand how this may pose a challenge to my feminism, although from having read other responses to this question I gather it becomes a question of gendered/gendering resources – i.e. that the ideal AP mom is staying at home and attending full-time to her child’s needs, thus requiring a partner (presumably a husband, implying both heteronormativity and a degree of monogamousness).    From Wordnik.com.  [feminist mothering. « Love | Peace | Ohana] Reference