Secret to sea urchin's sharp teeth found

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Bericht 15-05-'09, 19:15

Lathander

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Secret to sea urchin's sharp teeth found

http://www.msnbc.msn.com/id/30765006/


The spines of sea urchins make them look like pin cushions, but these marine invertebrates also have very sharp teeth that can dig into rock. Now researchers have discovered what makes the teeth so strong — a smart structural design.
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