These Bacteria-Powered Robots May One Day Swim Through Your Bloodstream

The bacterium Escherichia coli, illustrated here, moves itself with propeller-like structures called flagella; it is one of the mobile microbes scientists have linked to cargo-carrying structures to form biohybrid microrobots. (Credit: supergalactic/Shutterstock) In the universe of TV's Doctor Who, the scariest adversaries of all are the hybrid robot-organic life-forms known as the Daleks. Each Dalek is a living being encased in a robotic shell equipped with lethal weaponry, frequently em

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