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Feathers make the man in world of birds (Reuters)

Started by riky, June 02, 2008, 11:44:33 PM

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riky

June 02, 2008, 11:44:33 PM
Feathers make the man in world of birds
    (Reuters)

 

Reuters - Dying the red breast feathers of
barn swallows not only won the birds more mates -- it made
their testosterone levels shoot up, U.S. researchers reported
on Monday.


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