Bombardier beetle eats machine bugs containing chemicals in its stomach . As chemicals pass into the stomach they mix with enzymes and explode . Each explosion causes the foul - smelling liquid to be forced from its rear . It ' pulses ' repeatedly from the beetle 's rear - and the bug can even aim .
Bombardier beetle mimics machine gun using chemicals in its stomach . As chemicals pass into the abdomen they mix with enzymes and explode . Each explosion causes the foul-smelling liquid to be forced from its rear . It 'pulses ' repeatedly from the beetle 's rear - and the bug can even aim .