Book excerpt: The Natural West offers essays reflecting the natural history of the American West as written by one of its most respected environmental historians. Developing a provocative theme, Dan Flores asserts that Western environmental history cannot be explained by examining place, culture, or policy alone, but should be understood within the context of a universal human nature. The Natural West entertains the notion that we all have a biological nature that helps explain some of our attitudes towards the environment. FLores also explains the ways in which various cultures-including the Comanches, New Mexico Hispanos, Mormons, Texans, and Montanans-interact with the environment of the West. Gracefully moving between the personal and the objective, Flores intersperses his writings with literature, scientific theory, and personal reflection. The topics cover a wide range-from historical human nature regarding animals and exploration, to the environmental histories of particular Western bioregions, and finally, to Western restoration as the great environmental theme of the twenty-first century.