Zhen Zhen is the name given to the new panda cub at the San Diego Zoo. It means "precious".
How precious? There are an estimated six billion, seven hundred sixty-eight million human beings on planet earth, and there are an estimated one thousand six hundred pandas alive today. That is one panda for every four million and two hundred thirty-three thousand people (rounded off).
Four million people, one panda.
That is more precious than diamonds or gold, by my calculations.