These super-colonies, found all over the world, are all of the same species of ant – the Argentine Ant. While it was believed until recently that each super-colony was unique, scientists from the University of Tokyo have found that the Argentine ants found in these super-colonies all have a specific hydrocarbon on their cuticles. While ants from different colonies will generally show signs of aggression towards one another, when put together, ants from these super-colonies actually get along very well. Even though they’re from opposite sides of the world, these ants act as though they’re from the same colony. As a result of this discovery, scientists now believe that the Argentine ants forming the super-colonies are actually all working together around the world, forming one worldwide mega-colony.