Rock Ant Workers Communicating (IMAGE) University of Bristol Caption Researchers at the University of Bristol, UK, led by Thomas O'Shea-Wheller, investigated the extent to which colonies of rock ants behave as a single entity by subjecting colonies of migrating ants to differing forms of simulated predator attack. Credit University of Bristol, UK Usage Restrictions Image is for single use only to illustrate stories on the PLOS ONE paper 'Differentiated Anti-Predation Responses in A Superorganism' by O'Shea-Wheller et al and is not to be archived. Please credit the copyright holder: University of Bristol, UK 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.