News, Piranha swap out their old teeth with new set waiting in a 'crypt'

[JD59]

I tell my girlfriend all the time she's like a Piranha with legs because she loves to eat.

News, Piranha teeth have the tough task of crunching bone and shredding flesh and, like well-used kitchen knives, they dull over time. Since they have no way to sharpen their teeth, piranhas lose and regrow all of the teeth on one side several times over their lifespan.

https://www.cnn.com/2019/10/11/world...scn/index.html

[turkeydance]

sharks do the same.