Friday, September 13, 2013

Sink Your Teeth Into This Shark Fact

 A shark's teeth are constantly replaced throughout it's life.

Picture from Mad Betty

 Multiple rows of replacement teeth grow in a groove on the inside of the jaw and steadily move forward.   Some sharks lose 30,000 or more teeth in their lifetime. The rate of tooth replacement varies from once every eight to ten days to several months. In most species, teeth are replaced one at a time as opposed to the simultaneous replacement of an entire row. 

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