保暖：就像北极熊和水獭，人类很有可能长出类似于“鲸脂”的皮层来保暖。
Keeping warm: Just like the polar bear and the otter, it is possible that humans develop an extra layer of "blubber" to keep warm.
当北极熊抱着爪子睡在冰山上时，它就像一个蹒跚学步的孩子抱着他们的泰迪熊。那真的很可爱！
While a polar bear is sleeping on an ice berg with its paws clutched around, it is like a toddler holding their teddy bear. That is truly cute!
当北极熊在冰山上睡觉时，爪子抓住周围，就像一个蹒跚学步的婴儿抓着他们的泰迪熊一样，那是真的非常可爱！
While a Polar bear sleeping on an ice berg with its PAWS clutched around it like a toddler holding their teddy bear is truly cute.
而且，就像环保主义者提到的，鲸，北极熊和其他物种依赖于本地区脆弱的栖息地。
And, as environmentalists note, whales, polar bears and other species depend on the region's fragile habitats.
但当冰层开始融化时——就像近年来已经发生的情况一样，这主要归咎于气候变暖——北极熊可能会忍饥挨饿，逐渐死亡。
But when the ice begins to melt - as it has in recent years, thanks largely to warming - the bears can starve and die.
你会感觉就像呆在空中、行走在海底或者在北极与北极熊滑雪。
You can feel what it is like to live in space, walk on the ocean floor or ski with polar bears at the North Pole.
就像一只熊，一只北极熊。
就像一只熊，一只北极熊。
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