[1] Shaanxi Acad Sci, Shaanxi Inst Zool, Shaanxi Key Lab Anim Conservat, Xian, Peoples R China
[2] NW Univ Xian, Shaanxi Key Lab Anim Conservat, Xian 710069, Peoples R China
[3] NW Univ Xian, Coll Life Sci, Xian 710069, Peoples R China
[4] Sun Yat Sen Univ, Sch Sociol & Anthropol, Martin Hall, Guangzhou 510275, Guangdong, Peoples R China
[5] Key Lab Human Evolut & Archaeometry Guangdong Pro, Guangzhou, Guangdong, Peoples R China
[6] Univ Illinois, Dept Anthropol, Program Ecol Evolut & Conservat Biol, 109 Davenport Hall, Urbana, IL 61801 USA
[7] Univ Calif Los Angeles, Ecol & Evolutionary Biol Dept, Los Angeles, CA USA