People use toothpaste and a toothbrush to clean their teeth. But some crocodiles have a bird friend who cleans their teeth and their mouth. This bird is not afraid of a crocodile at all. It ...
There are several reasons why swimmers wear swim caps in competition. First, a cap designates which team you swim with so the spectators will know without actually having to know you. Caps also make...
When we speed along a road, we notice that everything moves past us. Trees, houses, the road, fences - all fly past us in the opposite direction. We naturally expect the moon also to be ...
Camels are called "the ship of the desert" because of the way they move on the sand. They sway from side to side because they move both legs on one side at the same time, ...