Glossary

In Africa, the waterhole is a low point in the ground that collects water as it runs off the surrounding land.  All the animals gather around the waterhole to drink. 

Some animals who are prey, take refuge from predators in the water.  Other animals, who are predators, hunt for food, their prey, around the waterhole.

Elephants wallow in the mud of the waterhole and when they get out of the hole they take a lot of mud along with them.  This has the benefit of deepening the waterhole so that the waterhole can hold more rainwater.