NATIONAL ZOO'S PANDA TAI SHAN GETS CHECKUP

The National Zoo's 4-month-old giant panda cub, Tai Shan, climbs on the rocks in his exhibit after his 12th health exam at the Smithsonian's National Zoo on November 21, 2005. The zoo's staff says Tai Shan is becoming more confident and competent in his movement, which allows him to explore the rocks in his indoor exhibit. (UPI Photo/Jessie Cohen/Smithsonian's National Zoo)