Tuesday, June 17, 2008

Frog Keeps Its Claws Hidden Until Needed


Frog Keeps Its Claws Hidden Until Needed - NYTimes.com: "A frog with claws? Back at Harvard, Dr. Blackburn and colleagues consulted the literature, examined museum specimens and realized something even more unusual: the claws on the Cameroonian frog, and some related frogs from the same region, are normally contained inside the toes, but pop out through the skin when needed."

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