Some animals are green, like frogs. Some animals are brown, like worms. Polar bears are white. They live where it is very cold. Polar bears have white fur to help them camouflage into the snow and ice.
Photo Credit: HuntedDuck/E+/Getty Images
In the Know
What Can Mummies Teach Us?
Some mummies are very old. Scientists can learn from mummies. … read more
In the Know
World of Volcanoes
This is Arenal Volcano in Costa Rica. Look at the … read more
In the Know
Women Leaders
This year, we will have the first female vice president … read more