Pandas sent by the Chinese mainland to Taiwan, "Tuan Tuan" and "Yuan Yuan", play outdoors at the Taipei Zoo, southeast China's Taiwan, Feb. 14, 2009. The pair of pandas, whose Chinese names together means reunion, made their outdoor debut on the Valentine's Day. They started to meet indoor visitors on Jan. 26, 2009. They arrived on the island on Dec. 23, 2008. [Xinhua]