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Dolphins are some of the world’s

smartest animals. Most live in

the ocean, but a few live in rivers.

Dolphins are very sociable and

playful. Even adults have been

seen playing with things they find,

such as seaweed and sticks.

Most dolphins live in groups of

ten or more called pods. Dolphin

babies are called calves. They

live with their mothers until they

are about six years old. Then

they form new pods with other

dolphins their own age.