Females shut down male-male sperm competition in leafcutter ants
Thursday, March 18, 2010 - 14:07
in Biology & Nature
Danish researchers who have studied ants in Panama since 1992 discovered 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. However, once sperm has been stored, leafcutter ant queens neutralize male-male sperm competition with glandular secretions in their sperm-storage organ.