No mammal except man has more abundant cerebral matter.

任何哺乳类都没有这样丰富的脑髓神经。

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

达者仿若乌托邦的的地，这些独特的哺乳动物，会从世界各地本能地开启一段游牧长途。

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

恐龙的灭绝使地球上哺乳动物的产生有可能。

A young marine mammal had gotten tangled in a fishing net.

一只幼年海洋哺乳动物被渔网缠住。

A weasel is a small, brown mammal with a long body and short legs.

黄鼠狼（weasel）是一种棕色的小型哺乳动物，它身长腿短。

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

更令人难以信的是，其中一种被命名世界上最小的哺乳动物——大黄蜂蝙蝠。

The moment mesmerized Lisa Van Slett, a curator of mammals at the Dallas Zoo.

这一刻让达拉斯动物园哺乳动物馆馆长丽莎·范·斯莱特如痴如醉。

The pangolin, a large ant-eating mammal, is poached heavily.

穿山甲是一种以蚂蚁食的大型哺乳动物，被大量猎。

Bats are the only mammals that can fly.

蝙蝠是唯一会飞的哺乳动物。

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, 因以猎的速度来看, 大象这种在地上行走繁衍生息的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，和农村地区的动物相比，这些小型哺乳动物的脑部大小迅速增加。

The plant-eating sea mammal called Marium gained fame after she was filmed being fed milk and sea grass by her handlers.

它的名字叫做玛丽亚姆，它被饲养员喂食牛奶和海草视频发布后，受人们的广泛关注。

Dolly the sheep was the first cloned mammal, but scientists have struggled to reproduce even the early steps in people.

多利羊是首个科隆哺乳动物，但科学家一直努力再造人类繁殖的早期阶段。

More than 300 mammal species risk being consumed to extinction.

超过300种哺乳动物面临因被人类捕食而灭绝的风险。

It's the largest land mammal that's native to the islands, but it's about the size of a Chihuahua, making the island fox one of the smallest members of the dog family candidate.

它是岛上最大的陆地哺乳动物，但其大小和吉娃娃差不多，这使得它成犬科家族中最小的成员之一。

Opossums are omnivores. Meaning they will eat anything from plants, fruits, and nuts to bugs, small mammals and even roadkill.

负鼠是杂食动物，这说明它们会吃任何东西，植物、水果、坚果虫子、小型哺乳动物，甚至是马路上被车撞死的动物。

What is the largest mammal in the weasel family?

鼬类中最大的哺乳动物是？

Sea otters are one of the few marine mammals to use tools.

海獭是少数使用工具的海洋哺乳动物之一。

A couple of years later, in 2007, a researcher called Lisa Ballance, who was working in California, also started looking for ocean hotspots, but not for fish —what she was interested in was marine mammals things like seals.

两年之后，在2007年，一位在加利福尼亚州工作的研究人员，Lisa Ballance也开始寻找海洋热点地区。不过她感兴趣的不是鱼类，而是海洋哺乳动物，比如海豹。

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的哺乳动物。