Name: 冰雪世界（Our Planet | Frozen Worlds | FULL EPISODE | Netflix）
Uploaded: 2021-04-17T05:54:42.000Z
Duration: 53 min 32 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

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For the very first time, we looked back at our own planet.

Since then, the human population has more than doubled.

This series will celebrate the natural wonders that remain,

The polar regions of our planet may seem beyond the reach of most of us,

We, unintentionally, are changing these frozen worlds,

and these changes will not just affect the poles

The southern end of our planet, and the coldest place on Earth.

In its center, the covering of ice is over four kilometers thick.

Entire mountain ranges are buried beneath it.

19 million square kilometers of ocean freezes,

more than doubling the size of the ice cap.

life returns once again to the continent's shores.

The peninsula that stretches north towards South America

is the first part of it to be released from winter's grip.

There is a greater variety of living creatures here

Gentoo penguins spend most of their lives at sea,

but now, in spring, they have to come ashore to breed.

They're the fastest of all penguins in water,

but on land, life takes on a slower pace.

It's an uphill struggle to reach their nesting grounds...

The paths they follow, carved by thousands of tiny footsteps,

Less than one percent of Antarctica is ice-free,

are the only places where gentoos can lay their eggs.

but he's almost at the top, where his mate is waiting for him.

a gift to improve the nest and so win her favor.

Gentoo penguins used to be rare in this part of Antarctica,

but now, as temperatures rise, their numbers here are increasing.

Sea ice may appear to be flat and lifeless,

As the ice melts, the light filters through,

and algae, that have been trapped within the ice all winter, flourish.

is the polar equivalent of the great grasslands.

The ice is the soil upon which plant life grows,

Trillions of them swarm in the waters around Antarctica.

Protected by the ice above, they graze on algae whilst the sun shines.

Once all the ice has melted, the krill lose their protection,

Penguins may have lost their ability to fly,

but they still form flocks, as so many birds do.

the longer it takes them to catch their breath.

Ruffling their feathers traps air, which makes their bodies more streamlined.

The gentoos follow the krill down to depths of over 200 meters.

have traveled over 8,000 kilometers to get here.

only works when the krill are close to the surface.

As more humpbacks arrive, they begin to work in teams.

the overspill from one huge mouth is not lost but collected by another.

Some humpbacks regularly work in an even more coordinated way.

They do so when krill has descended to some depth.

Once in position, they blast air from their blowholes.

they create a curtain of bubbles around their prey.

As the spiraling net tightens, the krill are driven closer together,

and then the whales lunge upwards and collect them.

Almost all humpback whales in the southern hemisphere

Since the ban on commercial whaling, their numbers have recovered dramatically,

but their food supply is now under threat.

with warming temperatures and disappearing sea ice,

krill stocks in this part of the Southern Ocean

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冰雪世界（Our Planet | Frozen Worlds | FULL EPISODE | Netflix）

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