Drosophila 03 (IMAGE) Johannes Gutenberg Universitaet Mainz Caption The protocerebral bridge of the fly brain stores the information on body size. It is 0.13 mm in size along its horizontal axis. Credit photo/©: L. Spindler, AG Strauss, JGU Usage Restrictions This image may only be used in connection with the press release "Memory research: Fruit flies learn their body size once for an entire lifetime", issued by Johannes Gutenberg University Mainz on August 21, 2019. License Licensed 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.