There's an often repeated assertion in some of the less glamorous men's forums online that in online dating, etc. The top 20% of guys in terms of looks and status get 80% of the dates while the dating demand for women of child bearing age is more evenly spread out. This would tend to be indicative of polygamy being a natural tendency, even today, if social norms did not interfere.

Has there been any research on this on okcupid data, etc?