And that means climate change could end up driving nearly 20 percent of existing lizard species extinct by 2080.
研究发现，在2080年前20%左右的蜥蜴品种可能会因为气候变化而消失。
And that means climate change could end up drive nearly 20 percent of existing lizard species extinct by 2080.
这意味着到了2080年，气候变暖会导致将近20%的现存蜥蜴灭绝。
Cases in which many species become extinct within a geologically short interval of time are called mass extinctions.
许多物种在地质上很短的时间间隔内灭绝的情况称为大灭绝。
Boundary clay layers are used by scientists to determine the rate at which an extinct species declined.
边界粘土层被科学家用来确定一个灭绝物种衰落的速度。
Geigl and her colleagues looked at 3200-year-old fossil bones belonging to a single individual of an extinct cattle species called an aurochs.
盖格尔和她的同事们研究了3200年前的骨头化石，这些骨头属于一种已经灭绝的叫做欧洲野牛的种类。
Even if the new population is of a different species, it can approximately fill the niche vacated by the extinct population and keep the food web intact.
即使新的种群属于不同物种，它也可以大致填补已灭绝种群空出的生态位，保持食物网的完整。
They will tum out to be the second-largest species of birds to become extinct.
它们将成为第二大灭绝的鸟类。
Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
高斯在实验室里进行了许多双物种实验，其中一个物种在只有一种单一资源的情况下就灭绝了。
When a species goes extinct, it dramatically changes the landscape of biodiversity.
当一个物种灭绝时，它会极大地改变生物多样性的状况。
Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct.
不管什么原因，恐龙以及地球上几乎半数以上的物种灭绝了。
This break in Earth's history is marked by a mass extinction, when as many as half the species on the planet became extinct.
地球历史上的这次重大灾难以物种的大量消亡为标志；当时，地球上多达一半的物种都灭绝了。
Thanks to natural selection, most species that have ever lived has already gone extinct, so this is not a new phenomenon.
由于自然选择，大多数曾经存在过的物种已经灭绝，所以这不是一个新现象。
Humans arrived in the Kaliko Islands about 7,000 years ago, and within 3,000 years most of the large mammal species that had lived in the forests of the Kaliko Islands were extinct.
人类大约在7000年前到达加里科群岛，在3000年内，生活在加里科群岛森林中的大型哺乳动物物种大部分灭绝。
Meteorite impacts can be advantageous for some species, which thrive, and disastrous for other species, which become extinct.
陨石的撞击对某些物种是有利的，它们会茁壮成长；而对其他物种则是灾难性的，它们会灭绝。
A species once extinct is gone forever.
一个物种一旦灭绝就永远消失了。
The Russian biologist G. F. Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
俄罗斯生物学家G. F.Gause在试验室进行了大量的两个物种的实验，试验中，当只有单一的资源时，其中一个物种将会灭绝。
An extinct species or race of human beings, Homo neanderthalensis, associated with Middle Paleolithic tools.
作为已灭绝物种或人类种族，尼安德特人与旧石器时代中期的工具有关。
More to the point, 480 of the 492 species made extinct since Roman times have disappeared in the past two centuries.
说得更具体点，从古罗马时代以来，在过去的两个世纪里，492个品种中已经有480种灭绝了。
A mission aimed at rediscovering amphibian species thought to be extinct has yielded its first results.
一个旨在重新发现被认为灭绝的两栖物种的代表团收获了其第一个发现。
A further 875 species are considered extinct including 66 that are extinct in the wild.
另有875个物种已经灭绝，这其中包括66个野生灭绝的物种。
The expeditions, formally launched last month, collectively aim to find out whether 100 species thought extinct are in fact still alive.
据称世界上有100个物种已经灭绝，这项于上个月正式开始的考察，总的目的是验证是否这些物种实际上依然存活着。
Since then, four species have gone extinct, and the remaining six are all on the IUCN’s critically endangered list.
到目前为止，有四成的老虎已经灭绝了，剩下的六成都列于国际自然保护联盟的极度濒危名单之内。
Since then, four species have gone extinct, and the remaining six are all on the IUCN's critically endangered list.
到目前为止，有四成的老虎已经灭绝了，剩下的六成都列于国际自然保护联盟的极度濒危名单之内。
A technology used to develop new medical treatments might one day revive endangered or extinct species.
科学技术常常能带来新的医学疗法，有一天这些新疗法可能会拯救濒危物种，甚至重现灭绝的物种。
Human population is drastically reduced. Perhaps 90% of species become extinct, rivalling the worst mass extinctions in the Earth's 4.5 billion-year history.
人口数量大幅减少，也许90%的物种会灭绝，情况堪与地球45亿年历史中最严重的大规模灭绝匹敌。
Many of the planet’s species went extinct, but the crurotarsans weathered the storm.
地球上的很多物种都灭绝了，但是crurotarsan平安的渡过了这次危机。
We can tell from fossil evidence in rocks that many living species have become extinct over the millions of years since life began.
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。
In his view, the hosts on which lice were speciating during the Cretaceous could have been a different branch of the mammalian family tree, all of whose species are extinct.
在他看来，在白垩纪虱子物种进化时的宿主可能是哺乳动物系统树上的另一分支而这一分支上的所有物种都灭绝了。
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate.
当一种动物不能在每一代都繁殖出足够的后代而与其死亡率保持一致时，它就会逐渐灭绝了。
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate.
当一种动物不能在每一代都繁殖出足够的后代而与其死亡率保持一致时，它就会逐渐灭绝了。
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