Ladder-walking locusts use vision to climb, show big brains aren't always best

Scientists have shown for the first time that insects, like mammals, use vision rather than touch to find footholds. They made the discovery thanks to high-speed video cameras that they used to film desert locusts stepping along the rungs of a miniature ladder. The study sheds new light on insects' ability to perform complex tasks, such as visually guided limb control, usually associated with mammals.

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