Until now, fossils dated to 1.9million years ago - and mostly attributed to Homo habilis and Homo rudolfensis - have been undisputed considered ancestral to Homo erectus.
到目前为止,我们普遍承认那些可追溯至190万年前化石是直立人的祖先,它们大多数是「能人」和「卢多尔夫智人」。
In this particular case, there are many uncertainties regarding the fossil record from that time, including when the human lineage first emerged and how Homo habilis fits in the picture.
这个特殊的例子里,根据当时的化石记录,包括人类后裔首次出现时以及能人(Homo habilis,亦称直立猿人)如何适应当时的情况,还是有许多不确定因素。
See the opening picture of an early Homo habilis for an example.
看到一个例子早日能人为开幕图片。