Why do teeth don't regenerate?

Granixo@feddit.cl to No Stupid Questions@lemmy.world – 167 points –

Seems pretty dumb in our biological design to not be able to regenerate such a functional (and also easily breakable) part of our body.

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And how come we need to sleep?

And eat food?

And why not have wheels for feet?

And what would a chair look like if our knees bent the other way?

I know the point of your answer was not to dwell on these things, but:

And what would a chair look like if our knees bent the other way?

Is actually very interesting, would've we designed it as a normal chair but we would rest our chests instead of backs? Or would they have a place to rest the legs instead of on the floor?

I like that question too. It's originally from a stand up comedian named Gallagher.