Jinshin-Mushi are earthquake beetles. It can generate sound waves that can, with resonance, affect many types of minerals and causing them to collapse. A swarm of them can cause a small earthquake. They are said to be the size of a human fist, and live in Japan. The branch-like appendage sprouting from their thorax is what generates the sound waves. This special ability was influenced by nature to scare rival species from their dens. That way the jinshin-mushi will always have a habitat.