Researchers Complete Second Map of Male Fruit Fly Brain

<p>On September 4, 2026, researchers announced the completion of a map detailing every neuron in the brain of a male fruit fly. This "connectome" serves as a tool to advance neurobiology research. Earlier this year, the connectome of a female <em>Drosophila</em> was also completed. The work allowed the research team to refine tools that may be applicable to more complex nervous systems, including those of vertebrates.</p><p>The project was a collaboration between biologists at the Howard Hughes Medical Institute's Janelia Research Campus and computer scientists at Google. Both groups noted that the project could not have been accomplished without the expertise of the other. Preparing an entire brain for imaging at the necessary resolution requires specialized skills, as does the interpretation of the resulting images. Constructing a complete picture of the hundreds of millions of synapses in a brain as small as that of a fruit fly is a task that cannot be completed by humans in a practical timeframe.</p><p>The researchers involved in the project anticipate that the connectome will ultimately provide neurobiologists with a valuable resource for understanding brain function.</p>