Male Leafcutter Ant (IMAGE) Smithsonian Tropical Research Institute Caption Intense male-male competition continues even after mating has taken place in Atta ants. This study showed that in both ant and bee species in which queens have multiple mates, a male’s seminal fluid favors the survival of its own sperm over the other males' sperm. 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.