With geomagnetic compass hooked to the brain, blind rats act like they can see

By attaching a microstimulator and geomagnetic compass to the brains of blind rats, researchers have found that the animals can spontaneously learn to use new information about their location to navigate through a maze nearly as well as normally sighted rats. Researchers say the findings suggest that a similar kind of neuroprosthesis might also help blind people walk freely through the world.