Google Research maps the complete male fruit fly brain

Google Research published a connectomics milestone: a complete wiring map of the male fruit fly brain, built by tracing every neuron and synaptic connection. The project is described by Google as a general-science milestone rather than a product release.

Why it matters: Complete connectomes give neuroscientists a structural map to compare against function, and the image segmentation and neuron-tracing techniques used to build them increasingly rely on the same deep-learning methods used elsewhere in AI. Full-brain connectomes are also a reference point researchers use when discussing how far synthetic neural networks are from biological ones.