Vistors take pictures of giant panda cub, Bao Bao (back), outside her enclosure at the Smithsonian's National Zoo in Washington January 18, 2014. Bao Bao made her public debut Saturday. [Photo/Xinhua]
Related readings:
Pandas at Edinburgh Zoo to receive 1 millionth visitor
How smart phones have ruined our lives
How do you deal with an elderly queue-jumper?
To my dear social networks "ghosts"