Do you think you know everything about your own body? How about the fact that 25% of an adult's bones are in their feet? Or that taste buds aren't actually those bumps on your tongue?  By the way, your eyes are an amazing instrument! They can distinguish between 10 million different colors! And the muscles that help your eyes focus make around 100,000 movements a day. If you want to make your leg muscles move as much, you need to walk 50 miles! 

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