Simple behaviors such as walking or driving require the human eye to process complex visual cues to allow proper navigation. A fly eye needs to accomplish even more to guide appropriate behavioral ...

Rolling-ring drives are friction drives that convert the constant rotary motion of a plain shaft into a traversing action that moves an attached carriage. Used in positioning and reciprocating ...

Global motion computation of this kind may, therefore, have arisen independently twice during evolution. The authors of the study suggest that the different number of subtypes may correspond to the ...