祖先

anscestors;ancestry;forbears;forefathers
人类的～是类人猿。Men descended from apes./全人类属同一种类，均为同一～之后代。All human beings belong to a single species and are descended from a common stock./中国科学院古脊椎动物与古人类研究所于2007年4月2日宣布，研究人员对北京周口店田园洞2003年出土的42000至38500年前的人骨骼化石进行的对比分析结果表明，现代型人类的～未必完全源自非洲。The Institute of Vertebrate Palaeontology and Palaeoanthropology of the Chinese Academy of Sciences announced on April 2,2007 that the researchers examined a skeleton recovered in 2003 from the Tianyuan Cave,Zhoukoudian,near Beijing.The skeleton dating back 42000 to 38500years indicates that the out-of-Africa dispersal theory of modern humans may be more complex than previously thought./人类的～anscestor of human beings