Lab-made tadpole cyclopes could help with human organ transplants

At first blush, a blind tadpole that’s had an eyeball grafted onto its tail sounds like a creature from a fairy tale — the Cyclops’ tadpole cousin. But these tadpoles exist (scientists made them!) and they could actually see through the grafted eyes after being treated with migraine medication. In fact, the feat is even more astonishing than that: the eyes didn’t connect directly to the brain, as eyes ordinarily do; they connected to the spinal cord instead. The results s