Scientists had mapped the 300-neuron brain of a tiny worm ... mapped out in computer simulations may hold the "key to explaining how such a tiny organ can carry out so many powerful computational ...

The scientists envision that the tiny discs, which are about 250 nanometers across (about 1/500 the width of a human hair), would be injected directly into the desired location in the brain.

Adult fruit flies have intrigued brain scientists for decades because the animals’ small brains are capable of complex behaviors, like flying, fighting, and even flirting. For example ...