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 ...

A worker caste of honey-pot ants called repletes swell into tiny balls to store food collected by foragers. Army ants move in columns, eating all other insects and small animals in their path. Ants ...

(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 ...