Mantis shrimp may have swiftest kick in the animal kingdom
"The high-speed video revealed other interesting aspects of the strike, including bubbles generated at the point of impact. The researchers suggest that the shrimp is taking advantage of a physical process called cavitation - the destructive effect of exploding bubbles - to break snail shells. The bubbles are created by negative pressure near the point of impact, either during the swift strike or as the heel of the appendage pulls back afterward. The popping bubbles also generate sound, and perhaps even light."