To reach this utopian destination, these unique mammals will instinctively embark on a nomadic journey from all corners of the world.

为了到达者仿若乌托，这些独特哺乳动物，会从世界各本能开启一段游牧长途。

This disappearance made possible the rise of mammals on the earth.

恐龙灭绝使球上哺乳动物产生有了可能。

This characteristic is uniquely human as other mammals breasts only enlarge during nursing.

这种特征是人类独有，因为其他哺乳动物乳房只在哺乳期发育。

More incredibly, one of them is named the world's smallest mammal — the bumblebee bat.

更令人难以置信是，其中一种被命名为世界上最小哺乳动物——大蜂蝙蝠。

Scientists have unearthed the fossil of a mammal which lived 125 million years ago.

科学家出土了生活在1.25亿年前一只哺乳动物化石。

Bats are the only mammals that can fly.

蝙蝠是唯一会飞哺乳动物。

Activists say every minute counts because at the current rate of poaching, the elephant, the living mammal to walk the earth in the wild could be extinct within a generation.

活动积极分子表示这需要分秒必争, 因为以前偷猎速度来看, 大象这种在上行走繁衍生息哺乳动物将会面临灭顶之灾。

And she found that during that time, these small mammals had experienced a jump in brain size when compared to rural mammals.

她发现，在那段时间，和农村动物相比，这些小型哺乳动物脑部大小迅速增加。

What is the largest mammal in the weasel family?

鼬类中最大哺乳动物是？

Pickled mammals are studied to find out which species can transmit diseases.

研究浸泡哺乳动物，旨在发现传播疾病物种。

But nobody has ever released genetically modified mammals into the wild.

但是从未有人向自然界中投放过基因改造后哺乳动物。

But they found the mammal world especially interesting.

但随后发现哺乳动物世界非常有趣。

This allows them to see the radiated heat of warm-blooded mammals.

这使它们能够看到温血哺乳动物辐射热。

Physical anthropology is concerned with the development of man as a mammal.

生物人类学关注是人类作为哺乳动物发展。

For mammals like echidnas and kangaroos, the water proved too great a hurdle.

对于针鼹和袋鼠这样哺乳动物来说，海水是一个非常大障碍。

I think they're these like fluffy, flying mammals with a lot to offer, like tequila.

我认为它们是毛茸茸，会飞哺乳动物，可以提供很多东西，比如龙舌兰酒。

This is one of those rare places where you're actually able to get up close and personal with some of our planets most majestic mammals.

这是一个罕见方——你可以近距离接触到我们星球上最雄壮哺乳动物。

It is one of the few tailless mammals besides the apes and man.

它是除了猿猴和人类以外，少数没有尾巴哺乳动物之一。

Humans are among the only mammals on the planet with this ability.

人类是这个星球上唯一有这种能力哺乳动物。

Many people come to Denali to see the park's largest mammals.

许多人来到德纳里看公园里最大哺乳动物。