A gene-edited macaque which researchers knocked out BMAL1, a core circadian regulatory transcription factor, interacts with staff members 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. Scientists made the announcement Thursday, with two articles published in National Science Review, a top Chinese journal in English. The cloned monkeys were born in Shanghai at Institute of Neuroscience of Chinese Academy of Sciences. (Xinhua/Jin Liwang)