Soft Starfish Robots

More practical than models that use stiff bodies?  Unclear, but an interesting play ... " ... The bots undulate and walk using compressed air that is forced in and out of many tiny pneumatic channels running through their limbs—essentially, they get inflated and deflated like balloons. These soft robots, inspired by creatures such as starfish, worms, and squid, could one day squirm through obstacle courses that might prove challenging or impossible for metallic robots.  ... "