Fruit fly song circuit (IMAGE) Howard Hughes Medical Institute Caption The fly song circuit neuron anatomy (left, from electron microscopy) and the song circuit wiring diagram (right) with the two song networks – pulse and sine – indicated. Credit Joshua Lillvis / HHMI Janelia Research Campus Usage Restrictions Please credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.