A staff member feeds giant panda cub Lu Lu at the Shaanxi Rare Wild Animals Rescue and Breeding Research Center in northwest China's Shaanxi Province, Sept. 7, 2018.
Giant panda cubs Lu Lu (L) and Qiang Sheng play at the Shaanxi Rare Wild Animals Rescue and Breeding Research Center.
Four giant panda cubs, born at the center in 2017, grow well now.