About day four, we realized that there was nothing in this chamber but hominids.

大约在第四天的时候，我们意识到，这间屋子里除了人科动，什么都没有。

By the 1950s, the number of named hominid types had risen to comfortably over a hundred.

到20世纪50年代，被命名的人种动名称已达100种以上。

One area of paleoanthropological study involves the eating and dietary habits of hominids, erect bipedal primates—including early humans.

古人类学研究的个领域涉及原人（双脚立行走的灵长类动，包括早期人类）的饮食习惯。

We evolved smooth long foreheads and agile eyebrows compared to a stiff brow ridge of archaic hominids.

与古人类僵硬的眉脊相比，我们进化出了光滑的长前额和灵活的眉毛。

In fact, in 2007, in the Siwa oasis, an early hominid footprint was discovered fossilized in the rocks.

事实上，2007年在锡瓦的岩石中，发现了个早期原始人的足迹化石。

I found my first hominid — one-in-ten-million chance — my first day. It was completely — I was hooked.

我发现了我的第个人科动化石——千万分之的机会——我第天发现了。我完全被迷住了。

At no time since hominids first arose on Earth has Australia not been an island.

自从人科动第次在地球上出现以来，澳大利亚是块孤立的陆地。

In addition, Homo erectus was the first hominid [HAH muh nid] to use fire.

此外，立人是第个使用火的原始人 [HAH muh nid]。

To other hominids, Homo erectus must have seemed terrifyingly powerful, fleet, and gifted.

在其他人科动的眼里，立人肯定显得个儿大、有力气、敏捷和有才干。

It has these very different hands than any kind of hominid we've ever seen before, with those long, curved fingers.

它的手和我们以前见过的任何种人科动的手都不样，有着又长又弯曲的手指。

An upright hominid could see better, but could also be seen better.

立行走的人科动看得更清楚，但也被看得更清楚。

But, as early hominids expanded their group size, reciprocal grooming became too time-consuming.

但是，随着早期原始人扩大他们的群体规模，互惠梳理变得太耗时了。

But there is also an uncomfortable overlap with the rise of a certain hominid species originating in Africa 150,000 years ago.

另个双重效应是15万年前某些原于非洲的原始人种的进化。

The spacecraft gets her name from the Lucy fossil, an ancient human ancestor whose remains transform the study of hominid evolution.

“露西”号得名于“露西”化石，是古人类祖先的化石，其遗骸推进了对人类进化的研究。

I had looked at body proportions, but I had not made major hominid discoveries because they are just that rare.

我曾研究过身体比例，但是我对人科动没有重大的发现，因为它们实在是太罕见了。

We know less about ourselves, curiously enough, than about almost any other line of hominids.

很有意思的是，我们对自己的了解，少于对人科动几乎任何别的分支的了解。

If we were hunter gatherers or ancient hominids, every one of them would probably be dead.

如果我们是狩猎采集者或古代原始人，他们每个人都可能已经死了。

No persuasive reason has ever been adduced for why hominid brains suddenly began to grow two million years ago.

没有任何原因足以说明为什，么200万年前人科动的大脑突然开始增大。

This discovery helps us understand how early humans fit in with other hominid and animal species.

这发现有助于我们了解早期人类如何适应其他原始人和动种。

Early archaic hominids first arrived in the area  we today call Thailand at least 500,000 years ago.

至少在 50 万年前，早期古人类首次抵达我们今天称为泰国的地区。