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Male fish in Mexico sports sexy 'moustache'


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Male molly fish in Mexico wear a moustache that makes them appear more sexy to females.

Scientists were unsure why male Mexican mollies wear an extravagant moustache-like structure on their top lip.

Now a study has revealed that female fish find the moustache sexually attractive, and it is likely to be a sexually selected trait.

As well as being visually-attractive, the moustache may be used to rub the female fish's genitals, exciting them.

Details are published in the journal Behavioral Ecology and Sociobiology.

As their name suggests, Mexican mollies (Poecilia sphenops) live in Mexico, being a fairly common species that resides in a range of habitats from small rivers to creeks and lakes.

The fish has a complicated mating behaviour, with males fertilising females internally, rather than spreading sperm over externally laid eggs.

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I knew I was missing something :)

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Your cat also have a moustache...

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