Science Finally Solves Riddle of Putting Eyeball On Tadpole's Tail

You won't believe your eye ... your eye that is in your butt.

“If someone shouts ‘look behind you,’ tadpoles in Michael Levin’s laboratory may be ready. The tadpoles can see out of eyes growing from their tails, even though the organs aren’t directly wired to the animals’ brains.”
 — If a scientist offers to put an eye in your butt, and you’re a tadpole, then it’s probably legit.

Photo by D. Blackiston and M. Levin/Tufts University.