"Mechanical gears" have been discovered in the tiny Issus bug.
This tiny garden dweller has curved gear-like parts on each of their hind legs that interlock and rotate like the gears used on bicycles. These "gears" help the insect to jump.
Gear mechanisms were always thought to be a man-made invention but this proves that these, in fact, were first created in nature.
Read more: http://www.cam.ac.uk/research/news/functioning-mechanical-gears-seen-in-nature-for-the-first-time
