灭绝

30 percent of reptiles, birds, and fish are currently threatened with extinction.

目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。

Near the end of Devonian times, thirty percent of all animal life vanished.

在泥盆纪末期，30％的动物物种都灭绝了。

This report is from David Cook of our Science Unit: "Why did the dinosaurs become extinct?"

以下是来自我们科学部的戴维·库克的报道:“为什么恐龙灭绝了?”

One of the most important causes of extinction is loss of habitat.

灭绝的最重要原因之一就是生活环境的丢失.

How did the dinosaurs die out?

恐龙是如何灭绝的？

Man is exterminating too many species for zoos to be much help.

人类正在导致过多物种灭绝，动物园也无济于事。

The animals were ruthlessly hunted to the verge of extinction.

这些动物由于遭到无情的捕猎而濒于灭绝.

It is 250 years since the wolf became extinct in Britain.

狼在英国已经灭绝250年了。

Many species are in peril of extinction because of our destruction of their natural habitat.

许多物种由于我们破坏了它们的自然环境,现在正面临灭绝的危险.

It's going to be the death knell of the red deer.

这将导致马鹿的灭绝。

In the 19th century, inbreeding nearly led to the extinction of the royal family.

19世纪，近亲婚配几乎导致皇室宗族灭绝。

Many species have been shot to the verge of extinction.

很多物种已经被猎杀到灭绝的边缘。

The spill could wipe out the Gulf's turtle population.

这次原油泄漏可能会使波斯湾的海龟灭绝。

These endangered gentle giants are highly social animals.

这些濒临灭绝的、性情温顺的大型动物属于高度群居的动物。

The human race has enough weapons to annihilate itself.

人类有足够的武器灭绝自己。