Swans are some of the most beautiful animals in the world, the way they swim gracefully, the way the fly in the air, and their beautiful white feathers spread out in the air while they are flying. They are a close relatives of ducks and geese, and live on lakes. They are also very protective, as they can bite and snap at people. Different Species of Swans include the Black Swan, The Mute Swan, and the Tundra Swan.