Engineers have developed the smallest-ever remote-controlled walking robot -- and it comes in the form of a tiny, adorable peekytoe crab. Just a half-millimeter wide, the tiny crabs can bend, twist, ...

This may be the tiniest robot you’ve ever seen. Shaped like a peekytoe crab, it’s a half-millimeter across and it can crawl, jump, bend, and twist through tiny apertures. The edge of a coin provides ...