Kevin C. Brown 
Devils Hole Pupfish [EPUB ebook] 
The Unexpected Survival of an Endangered Species in the Modern American West

The Devils Hole pupfish is one of the rarest vertebrate animals on the planet; its only natural habitat is a ten-by-sixty-foot pool near Death Valley, on the Nevada-California border. Isolation in Devils Hole made the fish different from its close genetic relatives, but as Devils Hole Pupfish explores, what has made the species a survivor is its many surprising connections to the people who have studied, ignored, protested or protected it.