This is Theo Jansen’s “Strandbeest”, a walking house/crab contraption that looks like it was designed for the context of scaring-the-shit out of people on acid at Burning Man.
I don’t know how this thing works, but if you’re lucky enough to be in Mexico City on May 13th, you can catch the opening of Jansen’s Asombrosas Criaturas at Laboratorio Arte Alameda .