Weevils’ Legs Hide Hardware-Store Technology

Until now, the screw-and-nut system was thought to be a human innovation. But a new study reports that it exists in nature, in the legs of the Papuan weevil.

Researchers in Germany report their discovery in the journal Science. Generally, the three joints of an insect leg have the mechanics of a hinge. In the weevil, however, the coxa-trochanteral joint, equivalent to the hip joint in humans, appears to [...]

Full article at nytimes.com

 

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