Fens are a type of wetland characterized by waterlogged soil and a rich variety of plant life. They are typically found in low-lying areas and are often fed by groundwater, making them different from marshes and swamps. Fens support diverse ecosystems, including grasses, sedges, and various flowering plants, which provide habitat for many species of wildlife. These ecosystems play a crucial role in water filtration and flood control, helping to maintain the health of surrounding environments. Fens are also important for carbon storage, as they can sequester carbon dioxide from the atmosphere. Conservation efforts are essential to protect these valuable habitats from development and pollution.