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Cattle Herding Robot Takes Over a Dog’s Job

Dogs, helicopters and cowboys on horses herd cattle, and now a robot can help with the roundup.  Called SwagBot, the ungainly looking prototype has four metal legs with rubber wheels, topped with a rectangular silver box containing a battery pack. SwagBot is named after the “swagman,” an Australian term meaning someone who travels from farm to farm for work. But this one is electric. The robot, with its waterproof chassis, was tried out on the rough terrain of an Australian...

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