然而，它似乎已经这般存活了200年。
第一个假设是低盐度和高温有利于海星幼虫的存活。
The first hypothesis is that low salinity and high temperatures favor the survival of the starfish larvae.
研究人员认为，如果蜜蜂消失了，人类就只能存活四年。
Researchers suggest that humans would only survive for four years if the bees disappeared.
是什么让黑尾鹿在植物腐烂和休眠的严酷季节里存活下来？
What keeps the black-tailed deer alive in the harsher seasons of plant decay and dormancy?
读物幸存了下来；事实上，它不仅存活了下来，还繁荣昌盛。
Reading survived; in fact, it not only survived, it has flourished.
目前还没有公共政策在利用协助移徙来帮物种在气候变化中存活。
Currently there's no public policy on using assisted migration to help species survive climate change.
那么，如果一个基因不再被使用，它能在一个物种中存活多久呢？
So how long can a gene survive in a species if it is no longer used?
一棵橡树一旦长成，就有可能在干旱甚至火灾的小周期中存活下来。
Once an oak tree becomes established, it is likely to survive minor cycles of drought and even fire.
由于气候恶劣，奥林匹克土拨鼠之间的协力合作提高了它们的存活率。
Because the climate is so harsh, cooperation increases the survival rate of the Olympic marmots.
我们可能会说，仅仅是生存或肉体的存活并不能带给我真正重要的东西。
We might say, it might be that mere survival or bare bones survival doesn't really give me what matters.
我们对那类植物可能提出的下一个问题是，它存活到未来的机率有多大。
The next thing we might want to ask about a plant like that is what chances does it have to survive into the future.
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.
在世界上的一些地方，大树的数量正在减少，因为它们的幼苗无法存活或生长。
In some parts of the world, populations of big trees are dwindling because their seedlings cannot survive or grow.
因此，龙虾幼虫的存活率必然会提高，而福岛沿岸水域的龙虾数量也必然会增加。
Consequently, the survival rate of lobster larvae must be going up, and the lobster population in Foerkland's coastal waters is bound to increase.
这次，你是一名器官移植医生，你有五名病人，每名病人都急需器官移植才能存活。
This time, you're a transplant surgeon and you have five patients, each in desperate need of an organ transplant in order to survive.
海蛞蝓非常善于从太阳中收集能量，它们可以在不吃任何食物的情况下存活九个月。
The sea slugs are so good at gathering energy from the sun that they can live up to nine months without having to eat any food.
大多数只有一个基因拷贝的人——“携带者”——能够存活下来并将基因传给后代。
Most people with only one copy of the gene—"carriers"—survive and pass the gene to offspring.
然而，凭借着绝对数量，苔藓和蕨类植物到达了夏威夷群岛，存活并且繁衍了下来。
By force of sheer numbers, however, the mosses and ferns reached Hawaii, survived, and multiplied.
当鼻涕虫准备好要形成柄时，会有更多的阿米巴原虫必须死去，这样其他的才能存活。
When the slug is ready to make a stalk, more amoebas must die so that others can live.
他推断，已知的一些单细胞生物进入类似冬眠的状态，在没有空气和食物的情况下存活数年。
He reasoned that some single-celled creatures are known to enter a hibernation-like state and survive for years with no air or food.
问题在于，那些本应被竞争挤出市场的无利可图的公司，却因为裁员如此之难而存活了下来。
The snag is that unprofitable companies, which should have been squeezed out by competition, have remained alive because it is so hard to fire workers.
那些存活下来的人面临着更大的风险，如骨头变脆，威胁生命的感染，肾脏损害以及心脏问题。
Those who survive are at greater risk of developing brittle bones, life-threatening infections, kidney damage and heart problems.
这些作品同样可能在修道院图书馆中以数不清的数量存活到中世纪，但由于缺乏兴趣而未被注意。
It is equally possible that the work survived far into the Middle Ages in numerous copies in monastic libraries but were unnoticed due to lack of interest.
在每年只有半英尺降雨量的环境下，这种甲虫只能通过它背部亲水性皮肤在早晨收集的水露存活下来。
With half an inch of rain per year, the beetle can only survive by consuming the dew it collects on the hydrophilic skin of its back in the early mornings.
如果这是真的，那么为什么像蛇、蜥蜴、乌龟和鳄鱼这样的冷血动物能在寒冷的冬天和炎热的夏天存活下来呢？
If true, though, why did cold-blooded animals such as snakes, lizards, turtles, and crocodiles survive the freezing winters and torrid summers?
很快，它显然无法存活下去。
雷锋精神将存活在我们的心中。
这有助于人们在地震后存活下来。
棉花芽可以在月球上存活好几天。
它们也能在没有食物的情况下存活很长时间。
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