New fossil tells how piranhas got their teeth
Thursday, June 25, 2009 - 16:14
in Paleontology & Archaeology
How did piranhas -- the legendary freshwater fish with the razor bite -- get their telltale teeth? Researchers from Argentina, the United States and Venezuela have uncovered the jawbone of a striking transitional fossil that sheds light on this question. Named Megapiranha paranensis, this previously unknown fossil fish bridges the evolutionary gap between flesh-eating piranhas and their plant-eating cousins.
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