A species of plant-hopping insect, Issus coleoptratus, is the first living creature known to possess functional gears, a new study finds. The two interlocking gears on the insect's hind legs help ...

This complex arrangement of rods and interlocking gears is the hip joint of an immature planthopper insect. It’s the only instance of functioning, interlocking gears that has been found in nature, at ...

Gears are ubiquitous in the man-made world, found in items ranging from wristwatches to car engines, but it seems that nature invented them first. A species of plant-hopping insect, Issus ...

Historians think the 2,000-year-old device was used to predict the positions of celestial bodies. A new digital simulation suggests that its gears may have frequently malfunctioned ...