The combined photo shows portraits of South China female tiger Niuniu's seven cubs during the last two years in the Wangcheng zoo in Luoyang, central China's Henan Province. "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]