If you wanna be happy for the rest of your life never make a pretty woman your wife, or so the song goes, but if a woman wants children should she sleep with an unattractive man? Researchers at the University of Oxford and University College London have determined that men deemed handsome produce less sperm during sex than their not-so-hot counterparts.
According to their study, good-looking guys tend to release fewer sperm per romp in the sack to increase their chances of spreading the wealth among more women. Less-attractive men release more sperm per sexual encounter due to their assumed less frequent fertilization opportunities. Other species, like chicken and fish have been found to have similar characteristics as their human counterparts.
How a male negotiates this trade-off depends on how easy he finds it to attract females. The more attractive a male is, the more females will be willing to mate with him, reducing the value of each mating to him. This means it is optimal for him to contribute fewer sperm per mating. Although this reduces fertility per mating, it maximizes the number of offspring he sires overall.
What's your opinion on these findings?