Ducks are found all over the world. They are related to swans and geese, but unlike them, ducks tend to dive into the water to catch their food. They are omnivorous, feeding on small fish, insects, aquatic plants, and grubs, both in and out of water. This adaptability is partially why they are so wide spread. To help with their swimming they have webbed feet, allowing them to move quickly and smoothly. Though ducks are known for their distinctive quack, it is actually only the females that quack in most species!