It is the driest place in the U.S, with some of the hottest temperatures ever recorded. To forecast how global warming could impact this national park if temperatures rose a few degrees, we set out on an expedition through the Martian-like landscape to document the region's unique creatures. See how some scorpions thrive with a biological "antifreeze" running through their veins, plants live underground without water for months at a time and microorganisms exist by eating rocks.