Penguins

Penguins are birds.

The name is derived from Welsh terms ‘pen’, meaning head and ‘gwyn’, meaning white.
Linux mascot tux is also a penguin.
Penguin chicks have fluffy feathers.
They are ancient species that appeared 40 million years ago in the Eocene.
Penguins don’t fly, they swim.
Penguins lay eggs.
A group of penguins is called colonies or rookery.
They usually move in huge groups.
Penguins use their wings for swimming.
Penguins open their feather to feel the cold.
Penguins hunt for fish, squid or shrimp like krill in the oceans to fill their stomach.
Most penguins can swim about 15 miles per hour.
Penguins have tightly packed feathers that help them to keep warm.
There are at least 18 different species of penguins.
There may be as many as 100 million penguins in the world.
Penguins can be endangered by oil spills, water pollution, and the global warming.