(B) Schematics of the reverse locomotion of a caterpillar. (C) Snapshots of the crawling robot in one cycle of actuation for reverse locomotion. (D) Snapshots of the crawling robot in one cycle of ...

The robot’s hopping design builds on the drawbacks of tiny crawling or flying robots, which are more commonly used. The new robot is smaller than a thumb and weighs less than a paper clip.