1. Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing 100101, China
2. University of Chinese Academy of Sciences , Beijing 100049, China
3. School of Life Sciences, University of Science and Technology of China , Anhui, China
4. Beijing Advanced Center for Structural Biology, Beijing Frontier Innovation Center, School of Pharmaceutical Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University , 100084 Beijing, China
5. Department of Anthropology, Program in Ecology, Evolution, and Conservation Biology, University of Illinois , Urbana, IL, USA