Scientists offered new hope for bringing back extinct species like the passenger pigeon.

科学家们对于使像信鸽这样的灭绝物种复活提出了新希望。

What if you could modify that code, bring back extinct species, eliminate hereditary diseases?

如果可以修改密码，让灭绝的物种复活，消除遗传疾病呢？

The analysis revealed that two of the extinct species were, like the caiman, carnivorous.

分析显示，其中两个灭绝的物种，和凯门鳄一样，是食肉动物。

It was the first fossil of an extinct human species to be discovered in Africa.

这是在非洲发现的第一块灭绝的人类化石。

Geltor, a startup that has raised more than $100m, opted for a different extinct, elephantine species.

Geltor是一家融资超过1亿美元的初创公司，它选择了另一种已经灭绝的大象物种。

However, many researchers have warned about the difficulties of using genetic processes to actually recreate an extinct species.

然而，许多研究人员警告说，利用遗传过程来真正重建一个灭绝物种是很困难的。

Meaning big tooth, the Megalodon is an extinct species of mackerel shark that lived approximately a million years ago.

巨齿鲨是一种已经灭绝的鲭鲨，生活在大约一百万年前。

Some of them were very unusual, extinct species.

他们中的一些是非常不寻常的，已经灭绝的物种。

But it might be possible, as knowledge advances, to reconstruct part of it from a better understanding of that extinct species's DNA.

但是随着知识的积累，科学倒是家可以凭借对已消亡的物种的DNA更深入的了解，将穴居人的部分基因重现出来。

Genetic engineering is where DNA of a modern species is edited until it closely matches the extinct species.

• 基因工程是编辑现代物种的DNA，直到它与灭绝的物种非常匹配。

Decades from now, the restoration of extinct species could become a vital part of restoring the Earth's biosphere.

几十年后，灭绝物种的恢复可能成为恢复地球生物圈的重要组成部分。

It also involved the reintroduction of locally extinct species like the pink pigeon and the echo parakeet, both considered vulnerable and globally threatened.

它还包括重新引进当地灭绝的物种，如粉红鸽子和回声长尾小鹦鹉，他们都是易危物种和全球范围内受威胁的物种。

Lucy belonging to the extinct species Australopithecus afarensis was discovered in northern Ethiopia in 1974, with about 40 % of her skeletal bones extant.

露西属于已灭绝的南方古猿物种，1974年在埃塞俄比亚北部被发现，目前仍然存有她大约40%的骨骼。

So that the number of intermediate and transitional links, between all living and extinct species, must have been inconceivably great.

因此，所有现存物种和灭绝物种之间的中间和过渡环节的数量一定多得令人难以置信。

However, although biological species definition is relatively simple, in practice, it can be incredibly difficult to apply, particularly to extinct species.

然而，尽管生物物种的定义相对简单，但在实践中却很难应用，尤其是对已灭绝的物种。

The green and budding twigs may represent existing species; and those produced during former years may represent the long succession of extinct species.

绿色和发芽的树枝可能代表现有物种；而前几年生产的那些可能代表了灭绝物种的长期演替。

He belonged to that almost extinct species for which white men have long sought upon the information of the natives of the more inaccessible jungles.

他属于几乎灭绝的物种， 白人长期以来一直在更偏僻的丛林中寻找当地人的信息。

Paleontologists now think it was a Procoptodon goliah, an extinct species of short-faced kangaroo that had a large single clawed toe on each hind foot.

古生物学家现在认为它是 Procoptodon goliah，一种已灭绝的短面袋鼠， 每只后脚都有一个大的单爪脚趾。

Several of them decided that the wings  were similar enough to those of living bats that they must've belonged  to some extinct species of bat.

他们中的一些人认为，这些翅膀与活蝙蝠的翅膀非常相似，它们一定属于某种已灭绝的蝙蝠物种。

They then measured skulls of 63 extinct whale species and of 13 modern species and plotted them on a timeline that showed the whale family tree.

然后，他们测量了63种灭绝的鲸鱼物种和13种现代物种的头骨，并将它们绘制在显示鲸鱼家族树的时间轴上。