Adventures of a Slugabed

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Ugly Guys are More Fertile

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Man and brood

Man and brood

“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 maximises the number of offspring he sires overall. Less attractive males secure fewer matings but value each of them more highly, and by allocating more sperm to each mating make the most of their meagre opportunities. This leads to the rather paradoxical prediction that matings with attractive males may be less fertile than those with unattractive males.”

I don’t think I need to say anything else aside from the link. ScienceDaily

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Written by Cory

July 10, 2009 at 12:11 PM

Posted in Science

Tagged with , , , , ,

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