Researchers stumbled on a gene switching system that caused tadpoles to develop eyes on unlikely parts of their bodies.
They suspect the same biochemical pathway operates during the early development of higher animals, including humans. In decades to come it could provide the key to controlling the growth of eyes or eye structures from embryonic cells.
It's only a matter of time until a leather-jacketed Rutger Hauer shows up demanding to know his termination date . . .
(Thanks: Nick Redfern.)