Gr 6 Up—Using examples from around the world, the authors discuss various causes of habitat loss and fragmentation, along with conservation efforts and their results. A few in-depth case studies help readers understand the scope of the problems and possible solutions. "Science Connections" segments focus on natural cycles, biodiversity, and related concepts. Photos show wildlife, pollution, and human visitors or workers in the various areas, while graphics explain science concepts like habitat formation, carbon sinks, and food webs, or map locations of similar habitats. Groups such as Ducks Unlimited or individuals like Wangari Maathai, who are involved in conservation efforts, are highlighted in sidebars or mentioned in the text. Each title ends with a two-page cause-and-effect chart followed by "Essential Facts," which captures key points. VERDICT A thoughtful series for studying conservation efforts and human impact on the environment. A good choice for research projects.