Scientists have come up with a way to regenerate mammalian teeth–they’ve demonstrated it by growing pigs’ teeth in rats’ intestines.

Eeeewwwww…

Brush early and often. As one wag at Free Republic said, “it kind of eliminates the need for a mouth…”

Seriously, this could mean a revolution in dentistry. No more crowns, bridges, dentures or implants. Just regrown teeth, like sharks.