Good news for old coots

Men prefer mates who are younger and women prefer mates older than themselves.
--Fieder, M, Huber S. Biol Lett. 2007 Aug 28.

Old(er) guys who snag young wives appear to have an evolutionary advantage over younger men. According to the anthropological team of Fieder and Huber, "maximum offspring count" occurs if HE is 6 years older than SHE.

This study was based on data from 10,000 Swedish baby boomers. They found that a pairing of younger moms with older dads produced 5% more progeny than same-age couples. Over a large population, this may represent a huge evolutionary advantage to those women who genetically find older guys attractive and vice versa.