Mound of the narrow-headed ant (IMAGE) Aarhus University Caption This is an ant mound made by the narrow-headed ant. Credit Rikke Reisner Hansen (private photo) Usage Restrictions May only be used for this story. License Original 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.