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，这间屋子里除了科，什么都没有。

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，少于对科几乎任何别的分支的了解。

The Asian hominids would have had to appear, as it were, spontaneously.

可以说，除非亚洲的科是自发出现的。

For a time, it appears, Homo erectus was the only hominid species on Earth.

在一段时期内，似乎是地球上惟一的属。

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

古类研究的一个领域涉及原（双脚行走的灵长类，括早期类）的饮食习惯。

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，发现了一个早期原始的足迹化石。

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

与古类僵硬的眉脊相比，我们进化出了光滑的长前额和灵活的眉毛。

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

在其他科的眼里，肯定显得个儿大、有力气、敏捷和有才干。

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

到20世纪50年代，被命名的种名称已达100种以上。

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一种科的手都不一样，有着又长又弯曲的手指。

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

行走的科看得更清楚，但也被看得更清楚。

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

自从科第一次在地球上出现以来，澳大利亚就一是一块孤的陆地。

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

另一个双重效应就是15万年前某些原于非洲的原始种的进化。

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，是古类祖先的化石，其遗骸推进了对类进化的研究。

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

我发现了我的第一个科化石——千万分之一的机会——我第一天就发现了。我完全被迷住了。

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

此外，是第一个使用火的原始 [HAH muh nid]。

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

但是，随着早期原始扩大他们的群体规模，互惠梳理变得太耗时了。

Hominid brains expanded quite rapidly throughout human evolutionary history.

类进化史上，族大脑的体积迅速扩大。

But I started speaking to the hominid specialists.

但我开始与类家专家交流。

But it's now thought that this was a different kind of hominid.

但现在认为这是一种不同的原始类。