New map of a male fly central nervous system includes all 166,000 neurons

Live updates

1. 1h ago

   Google Research releases MaleCNS v1.0 fruit fly nervous system map

   Google Research and HHMI Janelia mapped the complete central nervous system of an adult male fruit fly. The MaleCNS v1.0 dataset contains more than 166,000 neurons and millions of connections. While neuroscientists view the 3D map as a major contribution to the field, software engineers are using the model to run video games such as Doom and Mario 64. Earlier analysis showed that 95 percent of the neurons in the male nervous system are also present in females.

   Why it matters

   Mapping a complete nervous system allows researchers to study how specific neural circuits produce behavior. This dataset provides a structural blueprint for one of the most studied organisms in genetics.

   What is confirmed

   • The MaleCNS v1.0 dataset includes more than 166,000 neurons from an adult male fruit fly.
   • Google Research and HHMI Janelia collaborated to map the nervous system.
   • Developers are using the 3D map to play the video game Doom.

   What to watch next

   • Verification of the AI model's performance in Mario 64
   • Further comparative studies between male and female fly nervous systems
   Sources used for this update (4)

   1. www.techspot.com — Google mapped a fly's nervous system and developers are using it to play Doom
   2. www.seroundtable.com — Daily Search Forum Recap: September 9, 2026
   3. hothardware.com — Google Mapped A Fruit Fly Brain, So Engineers Taught It To Play Doom
   4. san.com — They made a 9/11 conspiracy blockbuster. It followed them for decades: Let’s go Off Script
   confidence 100%
2. 1d ago

   Male Fruit Fly Central Nervous System Mapped by Researchers

   Researchers mapped the complete brain and central nervous system of an adult male fruit fly, revealing all 166,000 neurons and millions of connections. Google Research and the Howard Hughes Medical Institute released the dataset as MaleCNS v1.0. Days after the publication of the wiring diagram, software engineers began training the AI-powered 3D model to run video games including Doom and Mario 64. Scientists also discovered that 95 percent of the cells in the male nervous system also exist in females.

   Why it matters

   The complete connectome provides a structural blueprint that allows scientists to study how a small percentage of cellular differences alters behavior between sexes. Google Research, HHMI Janelia, the MRC Laboratory of Molecular Biology, and Cambridge previously contributed to publishing connectome data for the species. The speed at which programmers adapted the wiring diagram into a gaming simulator demonstrates unexpected applications for complex neural network datasets.

   What is confirmed

   • Scientists mapped the complete brain and central nervous system of an adult male fruit fly.
   • Google Research and the Howard Hughes Medical Institute released MaleCNS v1.0, a complete wiring diagram of the central nervous system.
   • The full MaleCNS v1.0 fruit fly connectome was trained to play Doom and Mario 64 days after its release.
   • Discovery shows that 95 percent of cells in the male nervous system also exist in females.

   Still unconfirmed

   • Researchers mapped 124 million connections specifically uncovering how a 5 percent difference alters behaviors.

   What to watch next

   • Further performance results of the MaleCNS v1.0 model running video games like Doom and Mario 64
   • Additional scientific findings from direct comparisons between male and female fly brain architectures using the new dataset
   Sources used for this update (4)

   1. en.clickpetroleoegas.com.br — Scientists Map 124 Million Connections in a Male Fruit Fly’s Nervous System, Discover that 95% of Cells Also Exist in Females
   2. tech.yahoo.com — Google maps entire brain and central nervous system of adult male fruit fly, software engineers immediately make it run Doom — AI-powered 3D model of over 166,000 neurons can ...
   3. finance.biggo.com — Fly Brain Wiring Diagram Turned Into Game Console Within Days of Release, Tested on "DOOM" and "Mario 64"
   4. gizmodo.com — Google Mapped a Fruit Fly’s Brain. Now It’s Playing Doom and Super Mario 64
   confidence 100%
3. 6d ago

   Researchers map complete male fruit fly central nervous system

   Google Research, HHMI Janelia, the MRC Laboratory of Molecular Biology, and Cambridge have published a complete connectome of the male Drosophila central nervous system. The map identifies all 166,000 neurons and 125 million synapses within the brain. This dataset allows scientists to conduct direct comparisons between male and female fly brains to better understand neural architecture. The project represents a milestone in connectomics by providing a full structural blueprint of the male fruit fly's neural connections.

   Why it matters

   Connectomics focuses on mapping every neuron and synapse in a brain to understand how structure influences behavior. Fruit flies serve as a primary model for neuroscience because their brains are complex enough to exhibit sophisticated behaviors but small enough to be fully mapped.

   What is confirmed

   • The male fruit fly central nervous system map includes 166,000 neurons.
   • The male fruit fly connectome contains 125 million synapses.
   • Google Research, HHMI Janelia, the MRC Laboratory of Molecular Biology, and Cambridge published the map.
   • The map enables direct comparisons between the male and female fly brains.

   What to watch next

   • Comparative studies identifying specific neural differences between male and female fly behaviors
   • Application of this map to explain human behavioral patterns
   Sources used for this update (7)

   1. Live Science — New map of a male fly central nervous system includes all 166,000 neurons — and enables direct comparisons to female fly brain
   2. blog.google — 5 amazing visuals show how the male fruit fly’s brain map is advancing neuroscience
   3. Google Research — A connectomics milestone: Mapping the complete male fruit fly brain
   4. HHMI — Completing the Connectome: How Pursuing a Map of the Fly Brain Rewired Neuroscience
   5. BBC — How the brain of a fly may help explain human behaviour
   6. arstechnica.com — Second complete map of a fruit fly brain completed
   7. aiweekly.co — Google, Janelia and Cambridge Publish Complete Male Fruit Fly Connectome With 166K Neurons and 125M Synapses
   confidence 100%