Scientists are investigating the possibility that attractiveness may be hereditary.
Researchers at the University of Exeter's Cornwall Campus found that sexually attractive fathers produce sexy sons - in the animal kingdom at least.
Dr David Hosken of the University of Exeter said: "Attractiveness probably can't be defined by individual characteristics.
"However, there is clearly a benefit to females in having sexy sons that are more likely to attract a mate and produce offspring."
Having established that attractiveness can be passed on from father to son, the research team believes that the findings could apply to humans.
Dr Hosken said: "It's possible that attractiveness is hereditable across the animal kingdom. It could even be the case in humans that the sexiest dads also have the most desirable sons, which would probably be bad news for my boy."
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