TIL that the insect Issus coleoptratus uses mechanical gears to synchronize its legs when jumping. This is the only known occurrence of functional mechanical gears in nature. - eviltoast
This Insect Has The Only Mechanical Gears Ever Found in Nature
www.smithsonianmag.com
The small hopping insect Issus coleoptratus uses toothed gears on its joints to precisely synchronize the kicks of its hind legs as it jumps forward