A South China tiger "Nannan", which was born in last April, is seen in the Wangcheng zoo in Luoyang, central China's Henan Province (file photo on July 9, 2009). Nannan's mother "Niuniu", has miraculously given birth to a total of seven tigers since 2009. The three cubs Niuniu just gave birth to this August were shown up to public for the first time on Thursday. [Xinhua/Gao Shanyue]