Penguins are seabirds in the family Spheniscidae. They use their wings to swim underwater, but they cannot fly in the air. They eat fish and other seafood. Penguins lay their eggs and raise their babies on land.
Penguins in the wild only live in the Southern Hemisphere: Antarctica, New Zealand, Australia, South Africa and South America, except Galápagos penguins. The furthest north they get is the Galapagos Islands, where the cold Humboldt Current flows past.