I'm doing an internship http://beeg.in.net/ beegxxx In findings published in Science magazine, zoologists at the University of Cambridge hailed the “first observation of mechanical gearing in a biological structure” after noticing that insects in the Issus family, otherwise known as plant-hoppers, have interlocking pairs of cogs on their hind-leg joints. These are designed to keep the insect’s legs synchronised when it jumps.