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Four-legged bot uses drone sidekick to avoid rough terrain
Even with a sure-stepping robot like DARPA's Big Dog, there is still plenty of terrain that today's robo-mules simply can't handle. That's why a team of researchers from ETH Zurich's Autonomous Systems Lab has devised a way to ensure these robots never get bogged down by impassible terrain: pair that robot with a forward-scouting UAV.
