Minnesota's Natural Heritage: An Ecological Perspective By John R. Tester. The definitive guide to the ecology of the state, this book examines the area's major ecosystems--lakes, rivers, forests, prairies, farmlands, and wetlands--and provides extensive information about the plants and animals found in the Land of 10,000 Lakes. Lavishly illustrated with 130 color photographs by award-winning photographers, this book is also filled with colorful maps, drawings, and diagrams to inform and delight those who live and travel the North Star state.