Ant nest in the grass (IMAGE) Cell Press Caption S. invicta nest in Sicily next to a river. Credit Institute of Evolutionary Biology Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.