This spring, a research team from Wesleyan traveled to Death Valley National Park to explore the ways bacteria diversifies in extreme environments. Death Valley, located about 130 miles west of Las Vegas, is a below-sea-level basin known for being the hottest place on earth and driest place in North America. The average rainfall is less than 2 inches, annually. "National parks are ideal for research, in general, because the land is protected indefinitely from commercial development," said team leader Fred Cohan, professor of biology, professor of environmental studies. "Death Valley is a nice model system for exobiology because of its extreme…