I do see so many posts here about people who are really hurt over a partner who has sex with someone else. And, of course, I have read about the hurt in many other places, too. Sex is more of an emotional issue for some people than others, I guess. However, traditionally, it is more of an emotional issue for women, I've read somewhere. But I know men can get hurt, too. I'm sad to think of men as just primates spreading their seed and beating their chests.

I will try to do more specific research on the issue of why monagamy in certain animals later. I did mention a bit of what I have found.