Suicide bombers exist in the animal kingdom.
Biologists struggling to categorize about 15 species of Southeast Asian suicide ants which explode to defend their colonies from invaders discovered a new group which they aptly named Colobopsis explodens.
Confronted by enemies, worker ants of the species don’t explode, but rather rupture their abdomens to release an irritating and sticky goo. Scientists have known about exploding ants for over a hundred years.
The new species also features doorkeeper ants with huge, plug-like heads. These defend ant nests by physically blocking all entrance holes.