You don’t know what a fish actually is, do you? We find out in this episode, as well as over 14,000 facts about why some fish can breathe air, why the Dutch thought a hippopotamus was a fish, and why a tugboat doesn’t tug. There’s also a fish quiz you can play while you listen, and Natalie & Drew explain why people, like fish (or some mammals) should be able to hibernate.

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* natalie & drew

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