Ant Brain Structure Comparison Chart (IMAGE) Drexel University Caption This is a diagram comparing the optical lobes in the brains of above and below-ground genera of army ants. Credit Photo courtesy of Sean O'Donnell/Drexel University. Usage Restrictions Photo can only be used with proper credit. 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.