[Ya'an, Sichuan Province, China; December 23. Image via Getty]

Workers guide giant panda Tuan Tuan into a cage at the Bifeng Gorge Base of the China Conservation and Research Center for the Giant Panda in Ya'an on December 23, 2008. After a breakfast of carrots and steamed corn buns, two Chinese pandas embarked December 23 on a long-anticipated trip as goodwill ambassadors to Taiwan, leaving their weeping keepers behind.Tuan Tuan and Yuan Yuan, both four years old, left their enclosures at the Ya'an breeding base in southwest China's Sichuan province before dawn, beginning the day-long journey to their new home at the Taipei zoo. AFP PHOTO/Sam YEH (Photo credit should read SAM YEH/AFP/Getty Images)