Argentine ant paralleled only by human society", and had probably been spread and maintained by human travel. They have been extraordinarily successful, in part, because different nests of the introduced Argentine ants seldom attack or compete with each other, unlike most other species of ant. In their introduced range, their genetic makeup is so uniform that individuals from one nest can mingle in a neighboring nest without being attacked. Thus, in most of their introduced range, they form supercolonies. "Some ants have an extraordinary social organization, called unicoloniality, whereby individuals mix freely among physically separated nests. This type of social organization is
Southern fire ant the widest distribution of these, occurring from the Carolinas to California, including Georgia, lowland Tennessee, Arkansas, and southern Kansas. Southern fire ant The southern fire ant ("Solenopsis xyloni"), also known as the Californian fire ant or cotton ant, is a stinging fire ant native to southern parts of the United States. Its behaviour is similar to the red imported fire ant "(S. invicta)", although its sting is less painful. It has a broad and opportunistic diet, and will store seeds in its nest and eat honeydew collected from other insects. The southern fire ant shares its range with the red