The Importance of Monogamy in Relationships

Polygyny, when you've got one bloke and multiple women, has been a very stable system. It's permitted in I think about 80% of cultures on the anthropological record. But there are lots of things that are associated with polygyny which are really bad news for women. And if you go on to say, polyamorous, subreddit or look at Twitter or any of these places, you will immediately come across people who are having a nightmare with jealousy.