What animals have webbed feet?

The platypus has webbed feet to help it when it swims. It has retractable webbing between the claws on its front legs and hind legs. The claws are needed for when the platypus digs its burrow, but the webbing would be torn by the digging; hence it is retractable.

Similarly, because the sea otter and beaver are semi-aquatic mammals, they also have webbed feet.

Many waterbirds, such as ducks, geese, swans, pelicans, storks and a variety of waterfowl have webbed feet.