这些研究结果表明,南方古猿sediba确实早于直立人存在,并且它的一些骨骼结构与现代人类有着惊人的相似之处。
The fossils examined in the Science papers are of an adolescent boy and an adult woman.
发表在《科学》杂志的该篇论文其研究对象为一个小男孩和一个成年妇女的化石。
They are well preserved, and encased in sediments that allow uncommonly precise dating.
这些化石保存完好,被封存在可进行精确年代测定的沉积物中,这实属罕见。
They lived 1.977m years ago, predating the appearance of Homo erectus by 77,000 years.
他们生活于197.7万年前,比直立人早出现7.7万年。
The period is an especially muddled one for palaeontology, being full of fragmentary fossilsthat are difficult to assign either to Homo or to Australopithecus.
该时期属于古生物学上极其混乱的年代,大量化石碎片都很难归类到直立人或南方古猿身上。
The sediba fossils, by contrast, have some of the most complete features in the early humanrecord.
比较而言,南方古猿sediba化石具备了早期人类一些最完整的特征。
The new studies centre on the most telling bits of anatomy in the story of human evolution:the brain, pelvis, hands and feet.
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