The animal kingdom is full of clever animals. Animals use their intelligence to survive. Some have super senses. Others build amazing structures. Read this series to meet some of the smartest animals in the world. Many animals use tools to find food, groom themselves, or attract a mate. Some use sticks and stones that they find. Others make their own tools.

From orangutans with umbrellas to sea otters with favorite stones, meet some amazing animal tool users.