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No sex please, we're Amazonian Mollys Imprimer
Écrit par Smivs   

A fish species, which is all female, has survived for 70,000 years without reproducing sexually, experts believe. Scientists from the University of Edinburgh think the Amazon Molly may be employing special genetic survival "tricks" to avoid becoming extinct. The species, found in Texas and Mexico, interacts with males of other species to trigger its reproduction process. The offspring are clones of their mother and do not inherit any of the male's DNA. Dr Laurence Loewe, of the university's School of Biological Sciences, said: "What we have shown now is that this fish really has something special going on and that some special tricks exist to help this fish survive. "Maybe there is still occasional sex with strangers that keeps the species alive. Future research may give us some answers."

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Mis à jour / Last updated ( lundi, 28 avril 2008 03:51 )
 



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