The combined photo taken on May 29, 2011 shows twin polar bear cubs Lele (R) and Jingjing (L) during their debut show-up to the public in Dalian Laohutan Ocean Park in Dalian, northeast China's Liaoning Province, May 29, 2011. The first boy-and-girl twin polar bears born in China met the public for the first time on Sunday after their months-long struggle for survival in which they were saved from premature birth, being abandoned by mother, and the complicated process of changing dieting. [Xinhua/Ren Yong]