Mars had an oxygen-rich atmosphere around 4 billion years ago
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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The largest breed of rabbit is the Flemish Giant.
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A cow produces around 200,000 glasses of milk in her lifetime.
373
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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