The Hopi have genetically engineered corn to thrive in their desert fields. The plants appear stunted but produce ears that are the real thing. They have been at in Arizona, Utah and New Mexico for at it least a thousand years. Hopi corn is derived from teosinte Their village of Oraibi is the longest occupied town in America. It was founded in 1100 AD or thereabouts. The Hopi corn can be seen growing at present