Scientists finally solved the centuries-long mystery of where a starfish's head is

• For centuries, scientists have wondered: Where is the head of a starfish?
• Researchers mapped starfish genes to solve the mystery, and it wasn't what they expected.
• Turns out, starfish genes suggest it contains multiple heads, one at the center and in each limb.

In a game of pin the tail on the donkey, scientists have finally pinpointed the head on a starfish. Or more accurately — the heads on starfish.