A swampy region is an area of land that is saturated with water and is often characterized by a wetland environment. Bogs and FENS are two types of swampy regions. Bogs are acidic wetlands that are low in nutrients and are home to many species of plants and animals. FENS are wetlands that are fed by groundwater and are typically more nutrient-rich than bogs. Both bogs and FENS are important ecosystems that provide habitats for many species of plants and animals.