5. Bullet Ants
Also known as the 24 Ant, for the 24 hours of pain you endure if you’re unlucky enough to be stung by one of these tiny monsters. The pain caused by this insect’s sting is purported to be greater than that of any other Hymenopteran. It is described as causing “waves of burning, throbbing, all-consuming pain that continues unabated for up to 24 hours”.