New fruit fly connectome maps 166,000 neurons and 125 million connections across both sexes

GoogleAI · x · 2026-09-09

Google's new connectome covers over 166,000 neurons and 125 million connections, extending beyond the brain into the nerve cord. Compared with the 2020 hemibrain project (25,000 neurons, 20 million connections), it's a massive leap. Complete maps for both sexes finally let researchers pinpoint structural differences and study how they drive specific behaviors.

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