National Geographic Wild South West

In less than 100 miles, the Tale of Two Extremes takes us from the lowest and hottest point in the lower 48: to its highest and coldest peak. This is one of five unlikely journeys explored for a unique look at what attracts wildlife to seemingly inhospitable landscapes. From the fur-clad bears on the treeless mountain tops of Big Bend National Park to the twenty million bats that pour out of Bracken Cave every night to form the largest concentrations of mammals on the planet, Wild Southwest delivers a surprise twist at every turn.