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Page last updated at 07:51 GMT, Wednesday, 20 June 2012 08:51 UK

Meet Emily - the robot lifeguard

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Machines have been replacing people for years - but could a robot really replace a lifeguard? Spencer Kelly went to Zuma beach in Malibu, California to meet Emily - a robot lifeguard.

And he put Emily to the test too. Will she be able to rescue a Spencer alone in the ocean and all at sea?

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