The first day of school caused teachers at one primary school in Jinan, Shandong province, to do a double take. For the new semester brought five sets of twins in the same grade one class at Dianliu No 1 Primary School on Sept 3, 2012. The ten have become "stars" in their class and teachers find it difficult to distinguish them. [Photo/Asianewsphoto]

Dancers perform a traditional folk dance of the Korean ethnic group during a gala to celebrate the 60th anniversary of the Yanbian prefecture on Monday in the prefecture capital Yanji. Zhang Nan / Xinhua