Photo taken on June 14, 2017 shows a working staff member feeding a male cub delivered by fourteen-year-old panda Yang Yang at Shaanxi Rare Wild Animals Rescue and Breeding Research Center in northwest China's Shaanxi Province. The provincial forestry department said Thursday that Yang Yang gave birth to a male cub on June 11 and Ai Bang gave birth to twin male cubs on June 12 at the Center. (Photo/Xinhua)