There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Your fingernails grow faster in summer.
744
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human body contains over a billion miles of DNA.
147