Why do bombardier beetles spray?

Answer: Chemical weapon defense

Attracting potential mates — Wrong. The hot chemical spray is for defense, not courtship. Using it for mating would be counterproductive and dangerous!

Cleaning their bodies — Wrong. The explosive spray isn't for hygiene—it's a sophisticated defense mechanism that can burn and blind predators.

Chemical weapon defense ✓ — Correct! When threatened, bombardier beetles mix two chemicals (hydroquinone and hydrogen peroxide) in a special chamber. The reaction produces a boiling hot (100°C) toxic spray that explodes from their abdomen with a popping sound! This surprise weapon deters ants, frogs, and even birds!