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They ain't humans, but they are smart
Japanese fuel cell battery venture FC-R and D displays a prototype model of the humanoid robot 'i-sobot' (L), powered by a fuel cell battery and a dog-shaped robot (R) at the annual International Hydrogen and Fuel Cell Expo in Tokyo on February 27, 2008. The robot was developed by Japanese toymaker Tomy and the company modified power parts from rechargeable batteries to a fuel cell.
Photograph: Yoshikazu Tsuno/AFP/Getty Images
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