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Reuters: Frog species sprout claws on demand

Started by natalie, June 25, 2008, 02:41:18 PM

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Frog species sprout claws on demand
      


WASHINGTON (Reuters) - At least 11 species of African frogs carry a built-in concealed weapon -- they can sprout claws on demand to fight off attackers, U.S. researchers reported on Monday.
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