This title details the many unique adaptions that make the beaver such a successful builder of both dams and lodges.  The book specifically addresses the physical, social and behavioral characteristics of the beaver and how those characteristics allow the beaver to construct impressive structures.  Short sentences and graphically appealing set-up makes it a good choice for young readers. Text is supported by color photos, a map and a diagram of a lodge.  Includes a table of contents, true/false quiz, and glossary but no index.