Motion detection (IMAGE) Howard Hughes Medical Institute Caption Light enters the compound eye of the fly, causing hexagonally arranged photoreceptors to send electrical signals through a complex neural network, enabling the fly to detect motion. Credit Siwanowicz, I. & Loesche, F. / HHMI Janelia Research Campus, Lappalainen, J.K. / University of Tübingen Usage Restrictions Please credit Siwanowicz, I. & Loesche, F. / HHMI Janelia Research Campus, Lappalainen, J.K. / University of Tübingen 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.