Instructional Material: First-ever naturally occurring gears found on insect's legs

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University of Cambridge biologists reveal that the plant-hopping insect leaps with the aid of a pair of tiny, one-way gears, the first functional ones ever found on an animal. The link includes a SEM (Scanning Electron Microscope) image of the "gears". http://www.theverge.com/2013/9/12/4724040/naturally-occurring-gears-foun...

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