Penguins have wings, but they don't use them to fly. Instead, they use their wings to swim. Their wings are covered in feathers that are stiff and waterproof. This allows them to glide through the water with ease.
Streamlined bodies
Penguins have streamlined bodies that help them swim quickly and efficiently. Their bodies are covered in a thick layer of blubber that helps them to stay warm in the cold water.
Webbed feet
Penguins have webbed feet that help them to swim. Their feet are strong and powerful, and they can use them to propel themselves through the water at speeds of up to 20 miles per hour.
Beak
Penguins have sharp beaks that they use to catch food. Their beaks are also used to preen their feathers and to defend themselves from predators.
Eyesight
Penguins have excellent eyesight. They can see both above and below the water. This allows them to find food and avoid predators.
Hearing
Penguins have good hearing. They can hear sounds that are both in the air and in the water. This allows them to communicate with each other and to avoid predators.