Penguins are a group of aquatic flightless birds. Naturally, they live in the southern hemisphere in the cold climate. However, a few species live far south and can be seen in the temperate zone.
They are highly adapted to life in the water and is recognized by their countershaded dark and white plumage and over time their wings have evolved into flippers.
Penguins diet consists of krill, fish, squid and furthermore, spend half of their lives in the sea.