Leafcutter Ant Queen (IMAGE) Smithsonian Tropical Research Institute Caption Leafcutter ant queens store sperm for several decades, slowly fertilizing eggs to create colonies of millions of worker-daughters. After mating with multiple males, they can halt sperm competition within their own bodies using fluid from their sperm-storage organ. Credit Miriam Arrueta, STRI Usage Restrictions Credit: STRI 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.