我们的身体比以前差，这就是因为我们现在的生存环境和人类以前的生存环境有很大的不同。进化是人类为了适应野外的恶劣生存环境而产生的。
Our own bodies are worse off than most simply because of the many differences between the wilderness in which we evolved and the modern world in which we live.
如果早期人类没有像以前那样频繁地移动和融合，他们可能会继续进化成不同的物种。
If early humans hadn't moved and intermingled as much as they did, they probably would have continued to evolve into different species.
一些律师事务所现在使用人工智能软件来扫描和阅读堆积如山的法律文件，这些工作以前是由高薪的人类律师完成的。
Some law firms now use artificial intelligence software to scan and read mountains of legal documents, work that previously was performed by highly paid human lawyers.
以前人们认为地球是平的，所以人类从未征服过地球。
Believed to be flat, the earth was never conquered by human beings.
人类很早以前就知道了武器的用处。
在农业出现以前，人类赖以为生的食物包括150多种植物。
Before agriculture, humans were living on diets that included more than 150 plant species.
第一头母狼一度允许杰米在她生小狼后进入狼窝，因为母狼将生产作为秘密的事，人类以前从未尝试过这种行为。
At one point, the alpha female allowed Jamie to enter the wolf den after she gave birth to pups -- behavior never previously attempted by humans since female wolves keep the birthing process private.
很久以前，缺乏沟通的时候，人类可能会用这个器官来寻找配偶。
Once upon a time, humans would have used this organ to locate mates when communication was not possible.
十万年以前，人类的嘴开始变得越来越小，越来越不向前突起。
Over 100, 000 years ago, the human mouth started getting smaller and protruding less.
动物骨头上的凿痕表明，人类祖先在340万年以前就开始使用石头去切割肉类。
Gouge marks in animal bones suggest human ancestors used stones to cut meat 3.4m years ago. Photograph: Dikika Research Project/PA
200万年以前， 人类的祖先为经常跑路的脚制造出一种生理“设备”--鞋子。 这种设备有很多特点，后跟很大，鞋底有弹性。
About 2 million years ago, the ancestors of modern humans evolved the physiological "equipment" for running--long legs, large buttocks, and springy structures in the feet, among other features.
10年以前，解码人类基因序列使一些人感到失望。他们原来希望这个进展能够加速研发严重疾病的治疗方法。
Decoding the human genome a decade ago has disappointed some people who were hoping for the speedy development of cures for devastating illnesses.
欧洲航天局的“火星快车号”（Mars Express）飞船也将于2011年在接近火卫一的轨道上飞过，上述航天活动都是围绕着这颗以前默默无闻的卫星而展开，反映了人类对它的兴趣，也必然会引起人们猜测人类登陆这颗星球的可能。
With Mars Express, the European Space Agency’s craft, also passing close to Phobos in 2011, all this interest in a previously obscure moon will lead to speculation about human missions there.
计算机不但做重复性的脑力劳动工作比人类快很多，他们也成为能做以前专业人员才能做工作的业余人士：为什么要聘用一个真人会计来完成你的纳税申报单？
Computers can not only perform repetitive mental tasks much faster than human beings.
你们在地球上的任务就是为以前的这些生世做补偿，给人类带回爱和正义。
Your mission on earth was to make up for these former lives, to bring back love and justice to humanity.
然而在以前的研究中并没有发现在人类皮肤上有同样的作用。
However, no prior study had looked at the effect it may have on human skin.
几乎肯定的是，这将扭转人类预期寿命的上升趋势——所以我们的寿命将比以前短。
It is almost certainly going to reverse the rise in life expectancy - so we start living shorter lives than before.
如我以前所写，人类在不诚实上有一种天生的才能。
As I've written earlier, human beings have an innate skill at dishonesty.
表明人类仍在进化的研究以前曾有开展，但是将个人的生育成功与生理变化直接作比较分析，这被认为还是第一次。
Research suggesting humans are evolving has been carried out before, but this is believed to be the first that directly compares reproductive success of individuals with physiological changes.
关于超生物体的观点以前就有，当时其它领域的研究人员认为人类拥有一套不同的内部生态系统。
The notion of a superorganism has emerged before, as researchers in other fields have come to view humans as having a diverse internal ecosystem.
我们倾向于认为人类比以前更复杂更先进，然而当面对这类基本需要的时候，进化的本能可能比我们意识到的更能左右我们的决定。
While we like to think we're more complex and evolved, it seems that when it comes to these kinds of basic needs, evolutionary instinct might be kicking in more than we realize.
就像是怕以前作用还不够似的，现在防晒霜遮阳剂包含的纳米粒子越来越多，比人类头发直径的千分之一还小。
As if that were not enough of an impact, sunscreens increasingly contain nanoparticles, smaller than one one-thousandth the diameter of a human hair.
以前从没有人就人与动物的互动来观察人类的脑电波。
No one's ever looked at the brain waves before with human-animal interaction.
研究人员通过检验老鼠的大脑发现了一组基因在表达上的变化，其中一些在以前被认为与人类酒精上瘾有关。
Examining the rats' brains, the researchers found a change in the expression of a number of genes, some of which had previously been linked to alcoholism in humans.
有一种很简单的实验用药，以前从未用于治疗人类的癌症，可是现在自行决定服用这种“药物”的病人已经越来越多，伯格就是其中之一。
Burgh is one of a growing number of patients who have been dosing themselves with a simple laboratory chemical that has never before been used to treat cancer in people.
这次试验中使用的动物是老鼠，这种动物和以前用于试验的线虫和果蝇比起来已经很接近人类了。
But that is much closer to humans than the nematode worms and fruit flies which were the subjects of previous successful experiments on drug-induced life extension.
但是因为电脑比人类快很多倍，当计算时，我们希望它突破新的界限——可以解决我们以前不能达到的问题。
But since computers are much faster than humans when it comes to computation, we hope that new frontiers will be broken - enabling us to solve the problems that were unreachable before.
然而人类之间的竞争，人与人，团体与团体，依然在进行着，而且和以前一样激烈。
Competition between ourselves, person against person, community against community, still persists, however, and it is as fierce as it ever was.
在发明这些陶罐陶钵以前，人类只能将食物储存在地洞里或者树皮树藤编织的篮子里，这样很容易被老鼠之类小动物偷吃，同时也很受天气影响。 比如篮子吧，磨损得快，也容易受干受潮。
Before the discovery of the pot, people stored their food in holes in the ground or in baskets - both vulnerable to thieving creatures and, in the case of the baskets, to wear and to weather.
以前几乎没有在这个时期内的人类饮食状况的直接证据。
Little direct evidence of human diet has been found from this time period.
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