Colony (IMAGE) Johannes Gutenberg Universitaet Mainz Caption This is a colony of the host species of Temnothorax longispinosus with two queens: Young worker ants tend the brood, older worker ants forage for food. Credit photo/©: Susanne Foitzik, iOME, JGU Usage Restrictions This image may only be used in connection with the press release "Ant societies' arms race: Gene activity in defenders depends on invading slavemaking ants", issued by Johannes Gutenberg University Mainz on February 28, 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.