Death Valley

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.