So it looks like a half-stuffed sock -- and it is, sort of -- but this sandfish-inspired search and rescue robot has the potential to change the way machines maneuver through disaster zones. Playing off its previous endeavors, a team of Georgia Tech researchers has designed a wedge-shaped head to manipulate the vertical movement of its sand-swimming invention through "complex dirt and rubble environments." By mimicking the pointy snout of the sandfish lizard, and attaching it to the body of its robot -- which sports seven servo-powered
