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. Animals use all kinds of clever ways to keep in touch, attract a mate, or warn off enemies. Many communicate with sound. Others use flashing lights, smells, or chemicals.

From whales, who sing for a mate, to a peacock's shimmering tail, meet the animal kingdom's smartest communicators.