You also travel with a flock of migrating birds.

你还随着一群迁鸟到处旅行。

A lot of birds have migrated to the area and one doesn't need to travel long hours anymore or go to other lakes to watch the birds, says Ion Meuta, Deputy Mayor of Mahmudia.

Mahmudia市副市长Ion Meuta表示，许多鸟已经迁到该地区，人们不再需要长途跋涉或是到其他湖泊去看鸟。

On the other hand, there are fears that lagoons might harm both fish and birds, for example by disturbing migration patterns, and causing a build-up of silt, affecting local ecosystems.

在另一方面，有很多人害怕泻湖可能会危害鱼和鸟，说会扰乱迁路线，导致泥沙堆积，影响当地生态系统。

The lemmings leave their nests all together at the same time, forming huge crowds.

旅鼠会在同一时间一起离开们巢穴，组成巨大迁群体。

For instance, there are considerable archaeological difficulties about the theory that they came from England.

有很多考古学上困难，他们是何从英格兰迁。

The Coa Valley provides a migratory corridor for rare species.

科阿山谷为稀有物种提供了迁通道。

Narwhals migrate seasonally and travel in pods through arctic waters.

独角鲸会季节性迁，并成群结队地在北极水域中游弋。

A humpback whale has confounded scientists after making one of the longest and most unusual migrations ever recorded.

一头座头鲸进行了有记录以来最长和最不寻常迁，这让科学家们感到困惑。

They're the cause of population movements whose scale we have yet to fully realize.

们是人口迁原因。其规模我们尚未知晓。

The first ancestor that came to Changting is revered as a god by later generations.

最早迁至长汀祖先，被后代奉为神明。

Desert locusts are the world's oldest and most destructive migratory pest.

沙漠蝗虫是世界上最古老和最具破坏性迁害虫。

This year's migration is already well under way.

蝶群早已踏上今年迁旅程。

For most, this momentous migration is their first.

对于大多数来说，这次重大迁是他们第一次。

They're known to migrate long distances but scientists don't know exactly where they go.

已知们可以迁到很远地方，但并不知道们去了哪里。

Some birds migrate to find warmer weather.

有些鸟迁以寻找更温暖气候。

Up next is what's known as the world's largest annual human migration.

接下来是世界上最大年度人迁。

We'll be tagging hammerhead sharks, tiger sharks and mako sharks trying to understand how they're leveraging the Gulf and their birthing, mating and full migratory patterns.

我们要追踪双髻鲨，虎鲨还有灰鲭鲨，设法搞清楚们何影响海湾，们何出生、何交配、何迁。

Both of these fliers are 23 times bigger or smaller than you, and both fly intercontinental distances - the tiny bird migrates between Alaska and Mexico!

们两个都你大或小23倍，而且都可以洲际飞行——这种小蜂鸟在阿拉斯加和墨西哥之间迁!

In ancient China, many people migrated here, different nations migrated here in southeastern China, and the language in different village is totally different.

意思是说很多人、很多民族迁到这里，不同村落语言都不相通。

The Coa Valley provides a migratory corridor for rare species.

科阿山谷为稀有物种提供了迁通道。