In the early days of human history, people survived by hunting wild animals, or gathering wild grains and plants for food.
VOA: special.2010.01.31
And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.
他有一个有关早期生命的理论,一般人都会觉得很正常,他研究人类之前的生命形式没有什么不合适。
The Neanderthals were early relatives of human beings.
VOA: special.2010.12.07
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