Penguins are flightless birds that live in the Southern Hemisphere. They are well-adapted to cold climates, and their feathers play a vital role in their survival. Feathers are made of keratin, the same protein that makes up human hair and nails. They are lightweight and strong, and they provide insulation, waterproofing, and protection from the sun.
Penguins have a thick layer of feathers that helps to keep them warm in the cold water and air. The feathers are also waterproof, which helps to keep the penguins dry and comfortable. In addition, the feathers help to protect the penguins from the sun’s harmful UV rays.