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In pictures: Robot menagerie
Co-operative dragon

Gunryu, meaning "a group of dragons" in Japanese, is a co-operative robot.

Each segment can operate autonomously or join via the linking arms. A train of robots linked together can negotiate large obstacles such as canyons. Having a large number of identical interconnecting robots means that if one fails it does not cause the whole system to fail.

Professor Hirose believes this could be a useful approach for exploring other planets.

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