I was watching a program about Barracuda - they have a front tooth that is supposed to be razor sharp. My kitchen knife goes blunt if I use it for long periods without sharpening. Sharks keep on growing new teeth but barracuda don't.

How do fish like Barracuda maintain a tooth that is razor sharp?

Edit News article on how sharp the tooth is


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    Jun 15, 2017 at 11:56

1 Answer 1


Fish replace their teeth over time as needed. Thus, they don't maintain the sharpness of individual tooth, they just replace it. This is a passive process not a conscious process.

Source: Barton, M., & Bond, C. E. (2007). Bond's biology of fishes. Thomson.Pg. 414-415.

  • $\begingroup$ @cup feel free to accept the answer $\endgroup$ Jan 12, 2019 at 0:18

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