Researchers witness natural selection at work in dramatic comeback of male butterflies

An international team of researchers has documented a remarkable example of natural selection in a tropical butterfly species that fought back - genetically speaking - against a highly invasive, male-killing bacteria.

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<p><a href="http://www.physorg.com/news103469691.html">Researchers witness natural selection at work in dramatic comeback of male butterflies</a></p> <p>An international team of researchers has documented a remarkable example of natural selection in a tropical butterfly species that fought back - genetically speaking - against a highly invasive, male-killing bacteria.</p>