Add Yahoo as a preferred source to see more of our stories on Google. "Foolish, Earthlings!" The line most commonly uttered by two drooling aliens who have become a staple of "The Simpsons"' famed ...

"Foolish, Earthlings!" The line most commonly uttered by two drooling aliens who have become a staple of "The Simpsons"' famed Treehouse of Horror episodes – Kang and Kodos. No, literally, they're in ...