Functioning 'mechanical gears' seen in nature for first time

Previously believed to be only human-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. In Issus, the skeleton is used to solve a complex problem that the brain and nervous system can’t, one of the researchers said.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/f...