Why do mantis shrimp punch so hard?

Answer: They have spring-loaded appendages

Muscles are 10x stronger — Wrong. Mantis shrimp muscles aren't unusually strong. The power comes from a spring mechanism that stores and releases energy explosively.

Using electric muscle power — Wrong. The punch is mechanical, not electrical. Mantis shrimp use spring-loaded appendages that release stored energy in milliseconds.

They have spring-loaded appendages ✓ — Correct! Mantis shrimp have spring-loaded appendages (like a crossbow). Muscles slowly load the spring, then a latch releases it—the club accelerates at 10,000x gravity, reaching 50+ mph! The punch is so fast it creates cavitation bubbles that collapse with a second shockwave. They can crack aquarium glass!