Ant (IMAGE) University of California - Riverside Caption A UCR-led team of researchers identified the olfactory receptors ants use to distinguish between colony members so they can work together in a complex, hierarchical society. Credit JUERGEN LIEBIG Usage Restrictions None 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.