Penguins primarily live in southern hemisphere where they are concentrated in Antarctica. Only the Galapagos penguin has been found north of the equator.
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Despite being associated with Antarctica, research shows that modern penguins first appeared off the coast of Australia and New Zealand around 22 million years ago.
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Since penguins are birds and birds don't have teeth, these creatures don't have them either. Instead have fleshy spines inside their mouths that help them swallow food.
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Though they are classified as birds, penguins cannot fly. Instead, their wings have evolved for swimming.
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Penguins are monogamous, albeit for a season. A penguin may or may not choose the same partner in the next mating year.
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The largest living penguin is the emperor penguin which can grow up to 45 inches tall.
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The smallest penguin called the little penguin is found off the coasts of Australia and New Zealand.
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A group of penguins in the water is called a raft, and on land, that group is called a waddle