Researchers have produced the first wiring diagram for the whole brain of a fruit fly, a feat that promises to revolutionise the field of neuroscience and pave the way for unprecedented insights into how the brain produces behaviour.
Rarely in science has so much effort been directed toward so little material, with scientists taking years to map the meanderings of all 139,255 neurons and the 50m connections bundled up inside the fly’s poppy seed-sized brain.