Penguins have adapted to life in the sea rather than in the air. They may not be able to fly and they may look clumsy when they waddle about on land, but in the water they are superb swimmers. In fact, penguins swimming and diving in the sea are so graceful they have been mistaken for dolphins or porpoises.
Penguins have wings, but they are short and stubby compared with the wings of birds that fly. Penguins’ wings are stiff at the shoulder too. They do not have elbow joints either. So penguins cannot fold their wings like other birds. But these sturdy little wings make great paddles in the water, where penguins are really at home. They are also useful for helping the birds along on land when they are frightened or just in a hurry. You will see penguins flapping them furiously to get up a bit of speed. For most of their es, though, penguins are well equipped with the wings they have. In any case, flying wings would be useless to them underwater.
Picture Credit : Google
