The panda exhibit is a big draw at the National Zoo. Children recently visiting the zoo peer at the 275-pound male giant panda Tian Tian. (Michael Reynolds / EPA)
At Taipei Zoo in Taiwan, panda cub Yuan Zai thrives. The cub was born July 6. (Taipei Zoo / EPA)
Yuan Zai shown in October at Taipei Zoo. (Taipei Zoo / EPA)
A crib full of pandas at the Chengdu Research Base of Giant Panda Breeding in Chengdu, China. Fourteen giant panda cubs were born in 2013. (AFP/Getty Images)
Giant panda cub Xiao Liwu (Little Gift) made his first public appearance in January at San Diego Zoo. He was 5 months old. (Mike Blake / Reuters)
