Ant Supercolony Dominates Europe
July 25, 2002 | Source: BBC News
A species of Argentine ant has developed the largest supercolony ever recorded, stretching 6,000 kilometers from northern Italy to Spain, with billions of related ants occupying millions of nests.
Scientists think high nest densities would have favored cooperative behaviour over aggression. Evolution would then have reinforced this superiority because nests without internal strife would have had time and resources to fight off their enemies.