我们最早的祖先也通常生活在林地环境中。
Our earliest ancestors also typically occupied woodland environments.
他们已经会使用工具，虽然我们的祖先还要再过大约200万年才开始制作最早的石刀、石斧等等。
They were primed for tool use, even though it would be another two million years or so before our ancestors began to fashion the first stone blades, choppers and axes.
在我们最早的多细胞生物祖先于数亿年前在地球上出现时，癌症可能就已经存在。
Cancer has probably existed ever since our first multicellular ancestors appeared on Earth hundreds of millions of years ago.
埃塞俄比亚的中阿瓦什（MiddleAwash）是地球上最早有人类活动的地区，我们祖先的一支曾在此生息繁衍，并深埋于此600万年之久。
The Middle Awash area of Ethiopia is the most persistently occupied place on Earth. Members of our lineage have lived, died, and been buried there for almost six million years.
研究表明，这位我们人类最早的祖先很可能是长着长长牙齿的小型“食人魔”。
The study shows that the earliest ancestor of human being was probably a toothy little cannibal.
据说印章最早出现在8000年前，我们的祖先可以陶器和私人财产。
It is believed that seals came out as early as 8,000 years ago after our ancestors could make pottery wares and had private property.
研究表明，这位我们人类最早的祖先很可能是长着长长牙齿的小型“食人魔”。 。
The research indicates that this is the earliest ancestors of man discovered by far, which were named Homo gautengensis.
研究表明，这位我们人类最早的祖先很可能是长着长长牙齿的小型“食人魔”。 。
The research indicates that this is the earliest ancestors of man discovered by far, which were named Homo gautengensis.
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