In the article you say, "Research from around the world has shown that men have significantly greater desire for “sexual variety” (i.e., having a lot of different partners) over the course of their lives than women." First of all, this comment is way too general.As social scientists, it's dangerous to throw around broad statements like this. Second of all, could it be that men saying they want more sex and more partners has less to do with biology and more to do with the fact that due to societal constraints, women are not allowed to have/show these feelings, while men are encouraged to have them?
I also spend time discussing what many see as shortcomings of the theory (e.g., How does it account for the phenomenon of homosexuality? Like all theories, evolutionary psychology has its weaker points and, as I mentioned above, I do not believe it is the only way to explain gender differences in partner selection and I never meant to imply that by focusing on it in my article.But again, forgetting how modern conventions have impacted this, have you ever heard of something called birth control?It puts men and women on an equal playing field when it comes to the burden of raising non-existent children after a steamy night out.For men, the evolutionary strategy that makes the most sense is to sleep with as many women as possible because this maximizes their odds of having a lot of babies.For women, though, sleeping around indiscriminately makes far less sense.Like us on Facebook to get our articles delivered directly to your News Feed.For more on evolutionary psychology in particular, see here. Lehmiller's research program focuses on how secrecy and stigmatization impact relationship quality and physical and psychological health.I mentioned several possibilities, but spent quite a bit of time discussing the evolutionary perspective because there has been a lot of research in this area and because it was an issue raised by the reader who submitted the question.To address the specific points you made in your post, I should first say that my statement “research from around the world…” was not an exaggeration.In fact, research from around the world has shown that men have significantly greater desire for “sexual variety” (i.e., having a lot of different partners) over the course of their lives than women. From an evolutionary perspective, one of our major motivations or instincts is to produce as many of our own genetic offspring as possible in order to ensure that our genes are carried on to future generations.However, because the act of producing a child is, undisputedly, simpler for men than it is for women, the sexes tend to approach the mating game very differently.