Bao Bao, the Giant Panda cub is seen by the media for the first time January 6, 2014 inside his glass enclosure at the Smithsonian's National Zoo in Washington, DC, a few days before going on display to the general public. Bao Bao was born at the Smithsonian's National Zoo August 2, 2013. (Photo by Paul J. Richards/AFP Photo)

Yuan Zai, the first Taiwan-born baby panda, climbs a wood log inside an enclosure as visitors take pictures at the Taipei City Zoo in Taipei, January 6, 2014. The cub, which was born in July last year, made its public debut on Monday. (Photo by Patrick Lin/Reuters)

Taiwan's six month-old panda cub Yuan Zai hangs precariously from logs as she is viewed by the public for the first time at the Taipei Zoo in Taipei, Taiwan, Monday, January 6, 2014. (Photo by Wally Santana/AP Photo)

Taiwan's six-month-old panda cub Yuan Zai hangs precariously from logs as she is viewed by the public for the first time at the Taipei Zoo in Taipei, Taiwan, Monday, January 6, 2014. (Photo by Wally Santana/AP Photo)

Bao Bao, the four and a half month old giant panda cub, makes her public debut as her mother Mei Xiang stands close by at an indoor habitat at the National Zoo in Washington, Monday, January 6, 2014. (Photo by Charles Dharapak/AP Photo)

Animal keeper Marty Dearie carries Bao Bao, the four and a half month old giant panda cub, as she makes her public debut at an indoor habitat at the National Zoo in Washington, Monday, January 6, 2014. (Photo by Charles Dharapak/AP Photo)

Bao Bao, the four and a half month old giant panda, makes her public debut at an indoor habitat at the National Zoo in Washington, Monday, January 6, 2014. (Photo by Charles Dharapak/AP Photo)

Bao Bao, the four and a half month old giant panda, makes her public debut at an indoor habitat at the National Zoo in Washington, Monday, January 6, 2014. (Photo by Charles Dharapak/AP Photo)

Bao Bao, the four and a half month old giant panda, makes her public debut at an indoor habitat at the National Zoo in Washington, Monday, January 6, 2014. Bao Bao, who now weighs 16.9 pounds (7.65 kilograms), was born to the zoo's female giant panda Mei Xiang and male giant panda Tian Tian. (Photo by Charles Dharapak/AP Photo)

Giant panda bear cub Bao Bao moves around inside the David M. Rubenstein Family Giant Panda Habitat at the Smithsonian National Zoological Park January 6, 2014 in Washington, DC. (Photo by Chip Somodevilla/Getty Images)

Giant panda bear cub Bao Bao (L) and her mother Mei Xiang move around inside the David M. Rubenstein Family Giant Panda Habitat at the Smithsonian National Zoological Park January 6, 2014 in Washington, DC. Born August 23, 2013, and weighing nearly 17 pounds, Bao Bao will make her public debut at the zoo on January 18. (Photo by Chip Somodevilla/Getty Images)

A zookeeper carries Yuan Zai, the first Taiwan-born baby panda, at the Taipei City Zoo in Taipei, January 4, 2014. The cub, which was born in July 2013, was unveiled to the media on January 4 before its public debut next Monday, according to local media. (Photo by Sam Yeh/Reuters)

Yuan Zai, the first Taiwan-born baby panda, lies on wood logs inside an enclosure at the Taipei City Zoo in Taipei, January 4, 2014. (Photo by Patrick Lin/Reuters)

Yuan Zai, the first Taiwan-born baby panda, climbs inside its enclosure at the Taipei City Zoo on January 6, 2014. Yuan Zai, who weighed 180 grams (6.35 ounces) at birth, now weighs about 14 kilos (31 lbs) and make made her anticipated public debut as she turned six months old. (Photo by Mandy Cheng/AFP Photo)

Yuan Zai (R), the first Taiwan-born baby panda, is seen next to its mother Yuan Yuan inside an enclosure at the Taipei City Zoo in Taipei, January 6, 2014. (Photo by Patrick Lin/Reuters)

Yuan Zai, the first Taiwan-born baby panda, hangs from a wood log inside an enclosure at the Taipei City Zoo in Taipei January 6, 2014. (Photo by Patrick Lin/Reuters)