In this excellent introduction to the delicate world of ecosystems, Gibbons describes the symbiotic relationships between plants and animals with just the right amount of detail for young readers. The differences and similarities between marshes and swamps are discussed and the evolution of the wetlands is explained in simple terms. Watercolor paintings done in muted, natural tones teem with creatures, labeled and shown in their natural habitats. After decrying the destruction of these important wetlands that upsets the delicate balance of nature, Gibbons then describes methods currently being used to protect and preserve them. A map of swamps and marshes in North American and a fact sheet on wetlands are included. Good easy-to-read nonfiction.AKit Vaughan, J. B. Watkins Elementary School, Midlothian, VA Copyright 1998 Reed Business Information, Inc.