Because it helps them move through the water faster.
Further information:
Penguins spend much of their time in the sea, which is their source of food. Flippers are needed to enable them to swim, in order to catch their food. Penguins' wing bones are fused straight, rather than angled like a flying bird's, and this has the effect of making the wing rigid and powerful, like a flipper. The small wings and a streamlined body shape are ideal for diving in water, and also give the penguin extra speed when swimming.
Penguins spend much of their time in the sea, which is their source of food. Flippers are needed to enable them to swim, in order to catch their food. Penguins' wing bones are fused straight, rather than angled like a flying bird's, and this has the effect of making the wing rigid and powerful, like a flipper. The small wings and a streamlined body shape are ideal for diving in water, and also give the penguin extra speed when swimming.
They are used as paddles. Penguins use their wings to paddle underwater.
They use their wings to push them through the water when swimming.
flamingos flap their wings so that they can be steady in the air because they are so light.
Yes, they flap their wings to swim under water.
They don't. Penguins can't fly.
because you touch yourself at night
It is a flipper, which is a modified wing that penguins use to swim underwater.
Penguins.
You can call them wings, but they're more similar to a flipper. They certainly don't have wings in the same sense that flying birds do. Here's a diagram, which labels them as "flipper-like wings" http://www.enchantedlearning.com/subjects/birds/label/empenguin/answers.GIF
Flipper-Floppers
To hold its testicals
Penguins have feathers, wings and a beak. Penguins lay eggs and feed their babies.
Scientist think that both bird's wings and a seal's flipper have the same ancestors.
seals walk on there flipper's and they waddle on them like penguins waddle. but they are not penguins
Penguins won
Pittsburgh Penguins
not their wings
yes