Pseudomyrmex ferrugineus (image) Max Planck Institute for Chemical Ecology Caption Mutualistic Pseudomyrmex ferrugineus ants on an acacia plant. The ants love nectar from the plant's extrafloral nectaries. Credit Martin Heil / CINVESTAV, Irapuata, Mexico Usage Restrictions None 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.