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Teeny Tiny DNA Robot

Caltech researchers have built a prototype nanobot out of DNA, Popular Mechanics reports.

The nanobot has three main components, it says: a leg, an arm, and a sensor. The leg, which has two feet, allows the bot to move, while the arm can grab onto dye and the sensor then lets it know when to release the dye. Popular Mechanics notes that if the nanobot can be programmed to move around dye, it could be programmed to do all sorts of things.

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