剑桥雅思16Test1Passage1阅读原文翻译 Why we need to protect polar bears 具体的内容和教育在线平台一起来看看吧 剑桥雅思16 Test1 Passage1阅读原文翻译 第1段 Polar bears are being increasingly threatened by the effects of climate change, but ...

Polar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences. They are uniquely adapted to the extreme conditions of the ...

A polar bear's view of the world. 这是一头北极熊眼中的世界。 This remarkable footage was captured with collar cameras that scientists fitted to 20 polar bears during three summer weeks in Arctic Canada.

In Churchill, at the start of winter, the polar bear alert team often has to chase bears away from town. The animals gather in this area when the bay here starts to freeze. The sea ice is the platform ...