In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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Your thumb is about the same size as your nose.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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