When army ants come to town, you move out, stay perfectly still, or die. They arrive in a part of the forest by the thousands and consume tens of thousands of prey animals, mostly ...

Argentine ants have been found on six continents, from South America to Japan. Researchers are studying their impact.

(Much like termites, which cause far more severe damage.) Some species, such as army ants, defy the norm and do not have permanent homes. (Why invasive ants are a bigger threat than previously ...