毫无疑问，在孩子们惊恐的哭声与动物凄厉的嘶叫声中，我所看到的，是制造了生命灭绝的人性的凋零。
Undoubtedly, among children's frightened cries and grievous whinnies of animals, I saw the wilt of humanity that having caused the extinction of life.
在20世纪80年代，那些“末日先知”们找到了另一个主题：核冬天的威胁迫在眉睫。苏联与美国之间的核战争的结局，会是地球生命灭绝的潜在结局。
In the 1980s, the prophets of doom found another theme: the imminent danger of nuclear winter, the potential end of life on Earth resulting from a Soviet-American nuclear war.
大约2.5亿年前，在地球历史上最严重的一系列大灭绝中，几乎所有的生命物种都消失了。
Roughly 250 million years ago, in the worst series of mass extinction in Earth's history, almost all species of life simply vanished.
随着二叠纪生命形式的衰退，它们达到了一个致命的临界点，物种最终走向了大灭绝。
As Permian life-forms declined, they reached a fatal threshold and species succumbed to mass extinction.
大多数古老的生物几乎都灭绝了，但也有一些生命力顽强的物种存活了下来。
Most of the older organisms were nearly wiped out, although a few hardy species survived.
即使地球表面并没有被这种轰炸所灭绝，但除了最原始的生命形式之外，几乎不可能有其他生命形式幸存下来。
Even if Earth's surface were not actually sterilized by this bombardment, it is unlikely that any but the most primitive life-forms could have survived.
我们可根据岩石里的化石得出结论：自生命开始数百万年以来，许多物种已经灭绝了。
We can tell from fossil evidence in rocks that many living species have become extinct over the millions of years since life began.
生命的历史充斥着大动荡：繁荣多样的一个时代之后是大规模灭绝的另一个时代。
The history of life is littered with great upheavals: blooming diversity one epoch, mass wipe-outs the next.
四翼恐龙最终成为了生命之树上的灭绝分支；它们消失于8000万年前的化石记录中。
Four-winged dinosaurs were ultimately a dead branch on the tree of life; they disappear from the fossil record around 80 million years ago.
Kraemer说，如果将来某一物种可能灭绝，基础的生命控制中心将再导入足够的物种。
If certain species should become extinct, Kraemer saysthere would be enough of the basic building blocks to reintroduce the speciesin the future.
二叠纪的生命大灭绝，是我们这个星球上最可怕的一次物种灭绝，海洋的90%的生命以及陆地上70%的生命都消失了。
The Permian extinction-the worst extinction event in the planet's history-is estimated to have wiped out more than 90 percent of all Marine species and 70 percent of land animals.
但是，不仅仅只有人类依赖于这些宝贵的资源，许多濒临灭绝的动植物也要靠这些地下水维持生命。
But humans aren't the only ones that rely on this valuable resource - numerous plants and animals are sustained by this ground water, many of which are endangered.
二叠纪的生命大灭绝，是我们这个星球上最可怕的一次物种灭绝，海洋的90%的生命以及陆地上70%的生命都消失了。
The Permian extinction—the worst extinction event in the planet\'s history—is estimated to have wiped out more than 90 percent of all marine species and 70 percent of land animals.
科学家称，地球上的生命每隔2700万年就会被灭绝一次，我们到下一次大灭绝之前还有约1600万年时间。
Life on Earth is wiped out every 27 million years -and we have about 16 million years left until the next extinction, according to scientists.
曾经，地球上的生命因遭遇灭绝而重新洗牌，但演化从未停下脚步。
Once, Lives on Earth are reshuffled by extinction events, but the evolution never stops.
关于世界海洋状况的新的报告警告称，海洋生命可能正在以人类历史上前所未有的速度灭绝。
A new report on the state of the world's oceans warns Marine life is likely to go extinct at a rate unprecedented in human history.
正在恶化的状况威胁到了所有的生命，将生物推到了灭绝的边缘。
Its deteriorating condition is threatening all forms of life, pushing them to the edge of extinction.
地球出现生命以来，生物物种数量动态增长，但随着人类活动的出现，生物物种灭绝速度逐渐加快。
Since life appeared on earth, biological species grew dynamically. However, the speed of species extinction is gradually accelerating as human being came to dominance.
达尔文和华莱士的物竞天择理论都蕴含一个主要的观点：即所有现存和已灭绝的生命形式都起源于同一个共同的祖先。
A major implication of Darwin and Wallace's theory of natural selection is that all life forms, living and extinct, are descended from a single common ancestor.
阳宗海事件不仅是一次环境污染事故，更是一起生物物种的灭绝事件，起因是人类对动物生命安全的漠视。
Yangzonghai event is more a extinction accident of biotic population then merely a environmental incident, which caused from the immoralism of human being for the animals right.
生命的历史是漫长攸久的演替过程表征着植物群落演替进化的周期性特征，即“演替-分化-灭绝-突变-进化”的过程。
The history of biosis is the longtime process of succession characterizing the cyclical features of the succession and evolution of plant communities: succession-differentiation-extinction-evolution.
说不定你们种族中某一个坏人会发现像灭绝咒那样邪恶的魔咒，并用它来毁灭所有的生命。
It is not certain that some wicked one of your race will not find out a secret as evil as the Deplorable Word and use it to destroy all living things.
一次最新发现的贵重古生物化石帮忙科学家们领会有史以来最大规模生物灭绝之后，生命是如何重生的。
A newly-discovered treasure trove of ancient fossils are helping scientists understand how life on Earth recovered from the most catastrophic mass extinction of all time.
我生命和希望得到的象征，树木草叶都选择我，没有我，所有的动物都将灭绝。
I am the sign of life and of the hope. I was chosen for grass, leaves, trees — without me, all animals would die.
理性使用否决权将是安理会进步的标志，表明安理会有能力消除威胁和平与安全的因素、挽救深陷困苦或濒临灭绝的生命。
The 5 Permanent Members should concert together in advance of crisis, applying veto with high standard, which would be a major step forward, indicating the Security Council is indeed able tom.
理性使用否决权将是安理会进步的标志，表明安理会有能力消除威胁和平与安全的因素、挽救深陷困苦或濒临灭绝的生命。
The 5 Permanent Members should concert together in advance of crisis, applying veto with high standard, which would be a major step forward, indicating the Security Council is indeed able tom.
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