Earth Sky+Water Mammals of Northwest Guide - Comprehensive Wildlife IdentificationFrom Butterflies To Bears, Learn About All Varieties Of Living Things With Our Collection Of Animal Books. The Earth Sky+Water Mammals of Northwest Guide is an essential resource for nature enthusiasts and wildlife observers interested in the diverse mammalian species of the Northwestern United States. This guide provides detailed descriptions and high quality images to help identify a wide range of mammals, from large predators to small rodents, in