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Scientists have been experimenting with four-legged robots for years. They want robots to carry heavy loads over difficult areas of land and do other difficult jobs.
Creative Commons photo by Jiuguang-Wang
But one problem is power. Now that has changed. Engineers at the Massachusetts Institute of Technology (MIT) have designed a robot powered by batteries.
And the robot can run. In fact, scientists say their robots will soon be able to run like cheetahs, the fastest land ani...
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