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Shark Teeth are Disposable |
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No need to visit the dentist! Sharks have the ability to replace a lost tooth almost immediately.
New teeth are formed in consecutive rows, and as one falls out, another moves forward and takes its place. It is believed that sharks shed their teeth as often as every eight days, resulting in as many as 30,000 lost teeth in a lifetime… and a very tired Tooth Fairy!
It is fortunate for us that even prehistoric sharks had such an abundance of teeth. This is because the cartilaginous skeletons of sharks did not fossilize well. If it were not for teeth, we may not know as much as we do about the first 450 million years of shark legacy. Next Quick Shark Fact
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Quick Shark Facts 
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