Only about 2% of the world population has green eyes.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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A cow produces around 200,000 glasses of milk in her lifetime.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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