This is an extinct species of fish.

The parent species may survive indefinitely thereafter, or it may become extinct.

以后本家物种也许能继续存在, 也许会灭绝,说不准.

And they have quite devastating effects. Many species become extinct as a result of introduced mammals.

它们造成了灾难性的破坏, 一些物种已经因此灭绝了.

What a pity that this kind of rare animal has become extinct.

这种珍稀生物已无噍类了,真是可惜啊.

That kind of rare wild animal is reported to be extinct.

这种珍稀的野生动物告绝.

This kind of animal is in danger of extinct.

这种动物有灭绝的危险.

We were all shocked when we heard that hundreds of plants extinct each year.

得知地球上每年有几百种植物消失时,我们大家都非常震惊.

Paleontology the study of extinct organisms, including their fossil remains, and impressions left by them.

古生物学:指对已经灭绝生物进行研究的学科, 包括研究它们的化石残骸以及留下的痕迹.

We should protect gannets, which are almost extinct.

我们要保护已经为数不多的鲣鸟.

You don't know how to bring back an animal extinct.

你们不知道该如何才能让绝种的动物复活吧?

Accordingly, some species become extinct.

因此, 一些种变成熄灭.

Because dinosaurs are extinct the scientists had very little to go on.

因为恐龙已经灭绝,科学家几乎无法研究.

We saw several extinct volcanoes on our trip to Japan.

我们去日本旅行途中看到了好几座死火山.

He was one of a class rapidly becoming extinct in Wessex.

在维塞可斯那块地方上,他是属于眼看就要完全绝迹了那种行业中的一员.

People have proposed all sorts of hypotheses to explain why dinosaurs have become extinct.

人们提出种种假设,试图说明恐龙为什么会灭绝.

This dependency between fossil and living types is well illustrated when we deal with extinct groups.

化石与现存类型之间的这种依赖关系在我们研究绝灭类群时是十分明显的.

All hope was extinct.

一切希望都破灭了.

Many animals and birds are now extinct.

许多鸟兽现已绝种.

Dinosaurs have been extinct for millions of years.

恐龙绝种已有几百万年了.

All hopes were extinct.

所有希望都破灭了.

The extinct volcano's eruption would mean a cataclysm for the city.

死火山又重新喷发,对这座城市来说意味着大难临头.