Hua Jiao, a two-year-old female panda, is set free at the Liziping National Nature Reserve in Shimian county, Sichuan province, Nov 18, 2015. Researchers in the center have reduced unfavorable human impact on Hua Jiao. "We caged her on Thursday morning so that she would not stay captive for too long," Zhang Guiquan said. [Photo/China Daily]