What are bullet ants?

Bullet ants are insects known for delivering the most painful sting of any insect in the world. The sting is so intense that it's often compared to feeling like a gunshot wound. Bullet ants are large, about an inch long, and their venom can cause severe pain, swelling, and even fever-like symptoms. In some cultures, being stung by a bullet ant is used as a rite of passage, with the pain and ordeal considered a test of endurance and courage 1.