a mouthfull

Nov 15, 2007 10:17

why do humans have wisdom teeth if they just need to be removed?

EVOLVE ALREADY!

some one come get these things out of my mouth, they hurt =(

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captain_tragedy November 15 2007, 21:33:02 UTC
Interestingly, I'm very well-qualified to explain this (hooray for my $100K piece of paper!).

Basically, wisdom teeth don't fit in our jaws right, because there's no particular selection pressure for them to evolve more. That means, as annoying as they might be, they are generally not a detriment to people having kids and as such, passing on their genes, so for thousands and thousands of years, people have had painful, crooked-ass wisdom teeth, because there's no advantage ,in the strict context of reproducing, to having less fucked up wisdom teeth, or even none at all.

Run-on sentences rule.

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