In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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The average person's skin weighs twice as much as their brain.
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Babies crawl an average of 200m a day.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
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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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