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2/8/12 Whether it is to find a sexual partner or to see off an enemy, certain fish produce sounds. For their part piranhas sometimes start to grunt to warn that they are about to attack. 
9/5/07 Researchers at the University of Liège’s Functional and Evolutive Morphology Lab have discovered that clownfish produce messages in sound through their oral channels. That’s right, certain fish ‘speak’.
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© 2007 ULi�ge
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