What is a "penguin"?

A penguin is a flightless bird that is primarily found in the Southern Hemisphere, particularly in Antarctica. It is known for its unique adaptations to life in the ocean and its iconic black and white plumage. Penguins have streamlined bodies and wings modified into flippers, enabling them to be exceptional swimmers. They primarily feed on fish and other marine organisms, diving to great depths in search of food. Penguins form large colonies for breeding, with some species exhibiting monogamous behavior and sharing parental responsibilities. They have a charming waddling walk on land and are highly adapted to cold environments, with dense feathers and a layer of fat for insulation.