Penguins and Polar Bears - Getting to Know the Arctic and Antarctic

Alicia Klepeis; Grace Helmer (Illustrator)

We all know that ice bears and penguins never meet (except in zoos), but what else do you know about the Arctic and the Antarctic (or polar) regions? Did you know that Antarctica is not just the coldest, but also the driest continent on Earth? Have you ever wondered how a polar bear stays warm in the Ar...