达尔文在南美洲发现一些类似于现代物种的灭绝动物化石。
In South America Darwin found fossils of extinct animals that were similar to modern species...
火山爆发可能会使所有的动物灭绝。
Volcanic explosions could bring the whole animal species to extinction.
要防止动物文化灭绝可能为时已晚。
It might already be too late to prevent animal cultures from extinction.
这是个关于在大规模的物种灭绝时代保护野生动物的故事。
This is the story of wildlife conservation in the age of mass extinction.
并不是所有的大型哺乳动物都在那个时期灭绝了。
从化石记录中可以了解到一些已经灭绝、但已经完全变成海洋生物的鲸目动物。
Extinct but already fully marine cetaceans are known from the fossil record.
许多动物种类都处于濒临灭绝的危险中。
我们也可以只召集那些快要灭绝的动物嘛。
正是在此次灭绝之前,原始两栖动物第一次爬上了陆地。
Right before the extinction events, the first proto-amphibians made it onto shore.
有时依法反而更糟,可能变相加速动物的灭绝。
反过来,这使得恐龙灭绝而为哺乳动物的出现和繁衍开辟了道路提供了条件。
That, in turn, wiped out the dinosaurs and made way for the rise of mammals.
许多稀有动物濒临灭绝。
在灭绝的动物里,袋狼算是最惨的了。
许多动物将会失去家园,并且可能灭绝。
我们再也看不到这种动物了,或许它早就灭绝了。
如果没有自然保护区,很有可能更多的动物将要灭绝。
If we do not create nature reserves, more animal species will probably become extinct.
如果没有自然保护区,很有可能更多的动物将要灭绝。
Without nature preserve, more animals are likely to become extinct.
不少动物已经灭绝或滨临灭绝。
Many animals are already extinct, or getting close to extinction.
在这个过程中,很多动物灭绝。
频临灭绝的动物,例如熊猫,也居住在谷中。
Endangered animals, such as pandas, also live in the valley.
世界上濒临灭绝的动物有哪些?
此刻人们似乎还没有意识到一种动物的灭绝的风险。
Now seems to have been aware of the extinction of an animal hazards.
现在人们似乎还没有意识到一种动物的灭绝的危害。
Now seems to have been aware of the extinction of an animal hazards.
说的是越来越多的野生动物在濒临灭绝。
It said that there are more and more wild animals were dying out.
许多种动物已在大片区域内灭绝。
许多种动物已在大片区域内灭绝。
许多种动物已在大片区域内灭绝。
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