The Amazon rainforest is home to about one in ten of all known kinds of animals.

Earth is the only planet not named after a god.

T. rex had teeth as big as bananas.

The Great Wall of China is over 13,000 miles long.

A strawberry has about 200 seeds on the outside.

A hippo's sweat is a reddish color and helps protect its skin from the sun.

Flamingos get their pink color from the food they eat.