Population of captive pandas reaches 520 worldwide

Giant panda cubs are seen at the Chengdu giant panda breeding and research base in Chengdu, capital of southwest China's Sichuan Province, Sept. 29, 2017. The population of captive giant pandas stood at 520 worldwide by Oct. 6, according to the annual conference of the giant panda breeding technology committee of China. (Xinhua/Xue Yubin)