The Jiao quintuplets from Cangzhou, Hebei province, display their certificates as young ambassadors for the Beijing Olympic Games. They were granted the honor in Beijing on Tuesday to coincide with their sixth birthday. (Xinhua Photo)

The Jiao quintuplets from Cangzhou, Hebei province, perform a dragon dance on rollerskates in Beijing March 4, 2008. They were also chosen as young ambassadors for the Beijing Olympic Games on Tuesday to coincide with their sixth birthday. (Xinhua Photo)