Book excerpt: What do bogs, marshes, and swamps have in common? They're all kinds of wetlands, which are fascinating ecosystems that are home to myriad species of plants, animals, and microbes. These organisms are adapted to both dry and watery conditions. In this valuable volume, the most interesting and informative facts about wetlands are presented through accessible text and colorful photographs. Essential concepts of the elementary science classroom, such as adaptations and habitats, are given special attention. Graphic organizers help clarify and review key ideas for budding ecologists.