Did you know that the mantis shrimp is the boxer of the sea. With the use of a hyperbolic porabola on the underside of its elbow, the peacock mantis shrimp can puch as fast as a 22 caliber bullet. It's punch can also create a cavitation bubble on impact, something you usually see with explosions under water.
Now you know.
For more information watch Smarter Everyday's video on the Mantis
Shrimp.