The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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The strangers in your dreams are actually people that you've seen in real life.
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Cows can sleep standing up, but they can only dream lying down.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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A cow produces around 200,000 glasses of milk in her lifetime.
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