Xinhua selects China pictures of the year 2019

A staff member feeds cloned monkeys with circadian rhythm disorders at the Institute of Neuroscience of Chinese Academy of Sciences in Shanghai, east China, Jan. 22, 2019. China has cloned five monkeys from a gene-edited macaque with circadian rhythm disorders, the first time multiple monkeys have been cloned from a gene-edited monkey for biomedical research. (Xinhua/Jin Liwang)