In the dense jungles of South and Central America lives a tiny terror—the bullet ant. At first glance, it looks like a slightly oversized black ant. But don’t be fooled. This creature is infamous for having the most painful sting in the world.

Scientists and locals alike say the pain is so unbearable that it feels like being shot by a bullet—which is how the insect got its chilling name. Victims describe it as a burning, throbbing agony that spreads through the body and lasts for up to 24 hours. Unlike bee or wasp stings that fade quickly, the bullet ant’s venom leaves people sweating, trembling, and sometimes unable to move.

Despite its fearsome sting, the ant plays an important role in its ecosystem. Some Amazon tribes even use it in coming-of-age rituals, where young boys must endure multiple stings as a test of courage.

So, the next time you hear about the world’s most dangerous insects, remember—the bullet ant rules the throne of pain.