A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
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A cow produces around 200,000 glasses of milk in her lifetime.
373
Your thumb is about the same size as your nose.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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