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From the Smithsonian Channel

A Biologist on an Underwater Scooter Delights Young Dolphins

A marine biologist uses an underwater scooter to attract a group of young spotted dolphins, testing the boundaries of their play. For a long time, biologists thought that playtime was a functionless activity. But now we know it’s a way for young animals to develop their bodies–and in the case of spotted dolphins, a valuable way to reinforce bonds.

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