Your body is creating and killing about 2.4 million red blood cells per second.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
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A cow produces around 200,000 glasses of milk in her lifetime.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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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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