ROBOT The AI design for a robot that can walk is a squishy purple blob 7 months ago Sam Kreigman and his partners stood out as truly newsworthy a couple of years back with their "xenobots" — engineered… SEE A ROBOT DISSOLVE ITS OWN BONES TO AVOID OBSTRUCTION 5 years ago Cheetahs are the quickest animals on land, and they owe their speed to some extent to the structure of their…