Wetlands play an important role in supporting wildlife. They provide a habitat for a variety of species, including birds, amphibians, reptiles, and mammals. Wetlands also act as a buffer against floods, providing a place for floodwaters to collect and reducing the risk of flooding downstream. In addition, wetlands act as a filter, trapping sediment and pollutants from runoff and helping to improve water quality. Finally, wetlands provide food and shelter for a variety of species, which helps to support biodiversity.