Outside, dusk falls over the fields of Ukraine's vast steppe land.

外面，夜幕降临在乌克兰广袤草原上。

All the while, the people, the steppes remain constant.

自始至终，那群人和草原就一直存在着。

We can use the same process to go back one step further and trace the origins of Proto-Germanic to a language called Proto-Indo-European spoken about 6000 years ago on the pontic steppe in modern day Ukraine and Russia.

我们甚至能够用这种进程方法再往过去走一步，追溯古日耳曼语起源到一门被称作古原始印欧语语言，大约六千年前在东欧大草原上使用，也就今天乌克兰和俄罗斯。

That's essentially a semi-arid steppe biome and an extension of the vast American Great Plains.

这基本上旱草原生物群落，广阔美国大平原延伸。

To the north, you have Russia and the wider steppes of Eurasia.

在北部，有俄罗斯和欧大草原广阔区域。

The Mongols' ability to tame horses has made these nomads masters of the steppe.

蒙古人高超驯马能力让这些游牧民成了大草原主宰。

The Zhou came from the west-from the steppes of central Asia.

草原。

As Temujin was a child, he couldn't keep the loyalty of his father's men, and so he and his mother and brothers were all abandoned on the Asian steppe to fend for themselves.

由于铁木真还个孩子，他无法获得他父亲手下忠诚追随，所以他和他母亲以及兄弟们都被遗弃在洲大草原上自生自灭。

And From MONGOLIA People were performing dentistry on horses on the vast grasslands of the Mongolian steppe roughly 3,000 years ago, according to a research team's findings.

蒙古一个研究团队发现，大约3000年前，人们就已经在蒙古大草原广阔草地上为马匹治疗牙齿了。

The findings support a potential Miocene origin of nonnocturnal habits in a globally distributed owl group, which may be linked to steppe habitat expansion and climatic cooling in the late Miocene, according to the study.

根据这项研究，这些发现支持了全球分布猫头鹰群体非夜间习性潜在新世起源，这可能与新世晚期草原栖息地扩张和气候冷却有关。

In the aftermath, the Mongols retreated back to the steppe, never again playing an important part in history. But the same can't be said of Kublai Khan.

之后蒙古人撤退到草原，再也没有在历史上扮演过重要角色，这么说不包括忽必烈。

With eDNA, they also found that less nutritious grasses colonized the Arctic steppe during the last ice age, potentially contributing to the mammoth decline.

通过环境 DNA，研究者还发现那些缺乏营养价值草在最后一个冰河时期内于北极草原上肆意生长，极可能加速了长毛象种群数量减少。

" That's going to have consequences for things like the grazing animals that are dependent on the steppe or the grasslands, " he says.

这将对依赖草原食草动物产生影响。”

The reason was because the steppe eagle they were following in their research flew too far from Russia.

原因他们在研究追踪草原鹰飞得离俄罗斯太远了。

The animals are turning the former Milovice military base back into a kind of grassland or steppe.

这些动物正在把以前米洛维茨军事基地变成一个草原。

Their homeland was the Pontic-Caspian steppe, the vast grasslands north of the Black and Caspian seas.

这些人家园东欧大草原，即黑海和里海以北广袤草原。

There most of the trees will dry up, and there will be meadowlands of steppe vegetation.

而随着树木枯，那里会出现充满草原植被 草地。

The Mongolian steppe is the biggest grassland on Earth.

蒙古大草原地球上最大草原。

In the meantime, on the other side of the world around 2,000 BCE, something very consequential happened: people on the western Eurasian steppe domesticated horses.

同时，在世界另一端，大约在西元前两千年，非常必然结果发生了：在欧大草原西部人驯养了马。

No one is entirely sure when, or indeed if, he lived, but if he really did exist then he probably lived in Central Asian steppes in around 1000 BC.

他生卒年不详，甚至有人认为他不曾真正存在过。但如果真有这个人存在，他一定生活在公元前一千年。