Wetlands are areas where water covers the soil – either permanently or seasonally. They include:
Many ocean animals and migratory birds specifically seek out wetlands as a safe place to give birth and raise their young. In fact, more than one-third of threatened and endangered species in the U.S. live exclusively in wetlands. The "Kidneys of the Earth" Wetlands Cbaby
Wetlands are generally categorized based on their water source and vegetation: Wetlands are areas where water covers the soil