That pasty, wrinkly skin also gives the naked mole rat the appearance of someone who hasn't been outside since, well, ever -- which is actually pretty accurate, since they only live in underground tunnels they make themselves. How do they pull that off? Well ...
The same cartoonishly oversized teeth that give the naked mole rat that idiotic grin are also its secret weapon -- those things can chew through solid concrete. No, we're not speaking figuratively:
"All right, time for your snack."
That's the "before" picture. Here's the "after":
Flossing is complicated.