Ant Pheromones (IMAGE) Aarhus University Caption To find their way, ants secrete pheromones on their trails. Some of these pheromones have antibiotic properties. Credit Kim Aaen, NatureEyes Usage Restrictions May be used in relation to this press release. 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.