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Functioning ‘mechanical gears’ seen in nature for the first time
Previously believed to be only man-made, a natural example of a functioning gear mechanism has be... Previously believed to be only man-made, a natural example of a functioning gear mechanism has been discovered in a common insect - showing that evolution developed interlocking cogs long before we did. The juvenile Issus - a plant-hopping insect found in gardens across Europe - has hind-leg joints with curved cog-like strips of opposing ‘teeth’ that intermesh, rotating like mechanical gears to sy
2018/02/07 リンク