Learn how emperor penguins adopt a complex choreography to form a huddle to stay warm in bitter Antarctic winds.

It's raining more in the coldest place on Earth — and that's bad for penguins Penguin chicks, whose coats are made of fluffy down feathers, aren't as protected from the rain as adult penguins ...

It's raining more in the coldest place on Earth — and that's bad for penguins Penguin chicks, whose coats are made of fluffy down feathers, aren't as protected from the rain as adult penguins.

It's raining more in the coldest place on Earth — and that's bad for penguins Penguin chicks, whose coats are made of fluffy down feathers, aren't as protected from the rain as adult penguins ...

Read these 75 interesting and cool facts about Earth to learn more about our planet.