This is a disaster for polar bears.

对于北熊言，这是一场灾难。

We see polar bears as a sentinel of climate change.

“我们将北熊看作气候变化的哨兵。

Polar bears prefer seals for their meals.

北熊最爱吃海豹。

Polar bears nurse their cubs for almost eight months.

北熊会喂养它们的幼崽将近八个月。

Ringed seals are the main prey of polar bears.

斑海豹也是北熊的主要猎物。

Yeah, polar bears OK, have you ever seen a polar bear?

对，北熊。你到过吗？

Oh, dear. That polar bear's got the snuffles.

哦，天呐。那只北熊在抽鼻子。

Foreman says melting ice endangers polar bears on down to plankton and algae.

福尔曼说，融化的冰危及北熊的浮游生物和藻类。

You can see polar bears in Canada.

在加拿大你可以看到北熊。

We have polar bears and a real iceberg too!

我们有北熊，还有真正的冰山！

Polar bears, groundhogs, even birds like grouse all make snow burrows to stay warm.

北熊，土拨鼠，甚至是鸟类，例如松鸡，都打雪洞来保暖。

Polar bears are the largest land carnivore.

北熊是最大的陆地食肉动物。

This is said to be the world's first polar bear hotel.

据说这是世界上第一家北熊旅馆。

Some might check out at the idea of sleeping near a polar bear.

有些人可能会对睡在北熊旁边的想法感到惊讶。

On land, they hunted polar bears moose and various other game.

在陆地上，他们捕猎北熊、驼鹿和其他各种猎物。

And the polar bears help the people of Churchill.

北熊也帮助了丘吉尔镇的居民。

When they are on the ice, polar bears will come to say hello.

当他们在冰上时，北熊会过来和他们打招呼。

But climate change is giving polar bears additional challenges in their searches for food.

但气候变化给北熊的捕食带来了额外的挑战。

For lions, polar bears, and gorillas, it's at least 2 years.

对于狮子、北熊和大猩猩来说，至少需要 2 年。

Polar bears spend a lot of time hunting seals.

北熊花许多时间猎捕海豹。