Fire ant A new home
In the United States, fire ants have no natural predators or competitors. Native animals are not adapted to these ants. Fire ants are very aggressive. Their colonies can have many queens unlike many other ant species. Because of this, fire ants have spread very fast. By 1965, fire ant  came up on the south eastern coast and as far west as Texas. University of Minnesota. There is a separate group of fire ants living in California.