More Sites

Ugly males more fertile than hunks

Thursday, June 3, 2010
Getty: Brad Pitt
Do Brad's good looks come with a trade-off?
Ladies, good news if you partner's lacking in the looks department, he may be more fertile than a better-looking bloke, a new Australian study has found.

The theory is based on a study of tropical guppies, conducted at the University of Western Australia by Professor Jonathan Evans. The vibrant-coloured fish were chosen for this study as they have two types of mating, "courtship" displays (conducted by the handsome fish) and "sneak" mating (done by the average-looking fish).

In the study, the colourful, more attractive male fish who courted their mate were found to have poorer sperm quality than the average-looking males, which is nature's "trade-off" between characteristics than enable the male to reproduce, Professor Evans said.

VIEW GALLERY: Boost your sex drive

This supports the theory of "sperm competition", Professor Evans said, where females mate with several males and the partner with the fastest-swimming sperm fathers the offspring.

"Males that predominantly performed sneak matings were less ornamented but had faster-swimming sperm than those that predominantly used courtship," Professor Evans wrote in Proceedings of the Royal Society B: Biological Sciences.

"The reproductive advantage enjoyed by attractive males might potentially be offset by the poor performance of their ejaculates during sperm competition."

For health, beauty, celeb gossip and more, visit:


Getty ImagesCrash-test dummies to pack on the pounds as it's revealed Aussies are getting too fat for public transport Here's how to avoid catching the flu on a flight Getty ImagesAussie women spend 139 minutes more on housework every day than men Getty ImagesHealth hacks that could be doing you more harm than good
advertisement