1) What is a penguin?
A penguin is a glorious, flightless bird that is arguably the king of the seas. All penguins are part of the family Spheniscidae, which is divided into 18 species, including the emperor penguin (Aptenodytes forsteri), the Galapagos penguin (Spheniscus mendiculus), and the macaroni penguin (Eudyptes chrysolophus).
_{— Penguins, explained — Vox}

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