Enten, or ducks in English, are waterfowl belonging to the family Anatidae. They are commonly found in both freshwater and saltwater environments around the world. Ducks are known for their distinctive quacking sounds, although not all species quack. They have a broad, flat bill, webbed feet, and a rounded body, which makes them well-adapted for swimming and foraging in water. Ducks are omnivorous, feeding on a variety of foods including aquatic plants, insects, and small fish. They play an important role in their ecosystems by helping to control insect populations and dispersing plant seeds. Some well-known species of ducks include the mallard and the wood duck.