万年

That resulted in the anthropoid primates— which we are one of— which had better vision all around, compared to the earlier primates that only had to deal with constricting snakes, Isbell said.

当毒蛇在6000万年前开始逐步进化的时候，灵长类也随之开始进化独特的视觉系统。

Antu have a long history, about 26,000 years ago, in the Paleolithic period, the "Antu Ren" lived in caves who is one of the initial ancients in Northeast part of China.

安图历史悠久，有距今2.6万年前的中国东北最早的人类之一的"安图人"穴洞遗址。

It is estimated that the Chinese apeman, also known as Peking Man, lived in a big cave on the northern slope of the Dragon Bones Hill for about 300,000 years intermittently, 500,000-600,000 years ago.

根据科学家推算，大约在50—60万年前，人类的远祖"北京人"就生活在龙骨山北坡的一个大洞穴里，他们在此断断续续居住了约30万年。

The remains of Peking Man's daily life, hunting and the use of fire were also discovere, whitch testified the existance of apeman in Beijing region five hudred thousand yearsago.

并找到了"北京人"生活、狩猎及使用火的遗迹，证实50万年以前北京地区已有人类活动。

When you look at the archaeological record before 50,000 years ago, it is remarkably homogeneous

5万年以前的考古记录非常类似。

When you look at the archaeological record before 50,000 years ago, it is remarkably homogeneous.

5万年以前的考古记录非常类似，没有按地理分野的不同人工物品组。

Archaeological evidence suggests that the earliest humans in China date from 2.24 million to 250,000 years ago.

考古证据表明人类在中国地区出现的历史可追溯到224万年到250万年前。

The research for Atlantis is an enthusiastic travel across oceans and continents and ten thousand years of history.

对亚特兰蒂斯的研究是横跨海洋和大陆以及1万年历史的一次热心的旅行。

It is believed that the survival of Australopithecine the earliest age of about 400 million years ago, but this course of action is to start much earlier when the There is no evidence that occurred.

据认为南方古猿类生存的年代最早距今约400万年，但这种行动方式是在更早些的什么时候开始发生的尚无证据。

An advanced australopithecine who lived about 3.2 million years ago, Lucy walked upright.

生活在320万年前的高级纪灵长动物，"露西"开始直立行走。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。