Following the pattern of other entries in the much-honored Scientists in the Field series, Castaldo and Heim introduce several biologists and other researchers working at Isle Royale, a group of islands on Lake Superior, with portraits and short descriptions of their work and interests. Castaldo adds historical context and observations gleaned from a decadeslong study of how rising and falling populations of local wolves and their main prey, moose, affect the unusually isolated area’s entire ecosystem. She also offers an … Read the rest