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 ...

Fifty million years before humankind began farming, ancient ants were already in the agriculture business. Over time, leafcutter ants have evolved a complex system of agriculture in their nests ...

(How these ants help find fossils.) One Amazon species (Allomerus decemarticulatus) cooperatively builds extensive traps from plant fiber. When an insect steps on one of the trap’s many holes ...