我回到了芬兰，那里有雪、驯鹿和北极熊。
I'm back in Finland with the snow, reindeers, and polar bears.
和棕熊和北极熊一样，树懒熊可能是在树木稀少的环境中进化而来的。
Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees.
黑熊幼崽用树来防御，而经常生活在没有树的环境中的棕熊和北极熊则依靠攻击性来保护它们的幼崽。
Black bear cubs use trees for defense, whereas brown bears and polar bears, which regularly inhabit treeless environments, rely on aggression to protect their cubs.
因为树懒的体型比棕熊和北极熊要小，而且面临着更大的来自危险动物的威胁，所以它们可能会带着幼仔采取额外的预防措施。
Because sloth bears are smaller than brown and polar bears and are under greater threat from dangerous animals, they may have adopted the extra precaution of carrying their cubs.
因此，许多动物正在灭绝，比如企鹅和北极熊。
As a result, many animals are dying out, such as penguins and polar bears.
而且，这片海洋有大量的冰块可供海象和北极熊栖息。
The Sea also has a large amount of ice, where walruses and polar bears can rest.
一些动物会在水里游泳，比如鸭子、鹅、天鹅和北极熊。
Some animals can swim on water, such as ducks, goose, swans and pole bears.
在北极，北太平洋露脊鲸和北极熊可能是最受杂交威胁两种物种。
In the Arctic, the North Pacific right whale and polar bears are probably threatened the most by hybridization.
由于没时间打开车门回到车中，他和北极熊开始绕着车跑（见图）。
With no time to unlock the door of his car and climb inside, he ran around the car with the bear chasing behind (see photo).
加拿大官员相信：他们已经首次记录了对野外灰熊和北极熊杂交品种。
Canadian Officials Believe They Have First Documented Case of Grizzly-Polar Bear in Wild.
你可以感觉到如同居住在太空、在海底行走或在北极和北极熊一同滑雪那样的情况。
You can feel what it is like to live in space, walk on the ocean floor or ski with polar bears at North Pole.
你可以感觉到如同居住在太空、在海底行走或在北极和北极熊一同滑雪那样的情况。
You can feel what it is like to live in space walk on the ocean floor or ski with polar bears at North Pole.
研究者对棕熊和北极熊的头盖骨做了电脑模拟以评估其咬合力和咬合时头盖骨承受的压力。
The researchers created computer simulations of polar and brown bear skulls to estimate their bite strength and the stresses put on the skull by biting.
当我们看到狮子和北极熊，我们会惊叹于这些生物怎么能这么好的适应热带草原和极地冰盖。
When we see lions and polar bears, we marvel at how well these animals have adapted themselves to the savannah and the polar ice caps.
这个水暖工玩游戏时一贯幸运，但是那天他和北极熊一起去参加欢庆会时，他的运气令人痛苦地结束了。
The plumber had always been lucky at games. But the day he went to the carnival with the polar bear it all came to a poignant end.
谢瑞兹说，失去北极海面上的冰会影响每一样东西——从显而易见的，如同住在极北之地的人们和北极熊，到全球气候模式。
Losing sea ice cover in the Arctic would affect everything from the obvious, such as people who live in the far north and polar bears, to global weather patterns, said Serreze.
一趟出行去动物园看老虎、骆驼、大象、狮子、长颈鹿、袋鼠、猴子、熊猫、毒蛇、饿狼、斑马和北极熊是很好的并且需要一个导游。
A trip to the zoo for the tigers, camels, elephants, lions, giraffes, kangaroos, monkeys, pandas, snakes, wolves, zebras and polar bears is fine and needs a guide.
像北极熊和海象这样依靠海冰生存的野生动物也处于危险之中。
Wildlife like polar bears and walruses that depend on sea ice to live is also in danger.
海龟、北极熊和大熊猫只是世界上成千上万濒临灭绝的动物中的一部分。
Sea turtles, polar bears and giant pandas are just some of the thousands of animals in this world that are at risk of extinction.
陆上食物是非常有限的，根本没有什么能与一只海豹所能给北极熊提供脂肪和能量相比。
Food onshore is very limited and there is simply nothing comparable to a seal that provides a polar bear with fat and energy.
尽管北极熊的运动能力同样低下，北极熊幼崽还是和妈妈一起前行。
Although polar bears' locomotion is similarly inefficient, polar bear cubs walk along with their mother.
它们导致了北极熊和海豹数量的减少，而北极熊依靠海冰捕食海豹。
They have pushed down the number of polar bears and seals while polar bears depend on sea ice for hunting seals.
该公园是北极熊和其他动物，包括狼，驼鹿，许多珍稀鸟类野生动物的所在地。
The park is home to polar bears and other wildlife, including wolves, moose, and many rare bird species.
随着竞争的加剧和食物的减少，北极熊已经成为气候变化所导致的濒临灭绝物种的典范。
With increased competition and less food, the polar bear has become the poster child for extinction threats caused by climate change.
忘掉北极熊和企鹅吧。
他们看到了时空穿梭、愤怒的岛上居民，食人黑烟和地理错位的北极熊。
They've encountered time travel, angry island inhabitants, man-eating black smoke and geographically misplaced polar bears.
2006年，一位猎人在加拿大的北极地区射杀了一只奇怪的熊，它的皮毛如同北极熊一般呈现出白色，但夹杂着褐色斑点，长爪子和弓起的背部又表现出灰熊的特征来。
In 2006, a hunter in the Canadian Arctic shot a bear that had white fur like a polar bear's but had brown patches, long claws and a hump like a grizzly bear's.
我借住在卡纳克一座绿色预制的木屋里，地板上铺着用北极熊和麝香牛皮制成的大块地毯，屋外铁架上晾晒的鲸脂散发出刺鼻气味。
A woman who has spent nearly all her life in Qaanaaq stands in my green prefabricated wooden hut, on the vast polar bear and musk-oxen skins that cover the floor.
我借住在卡纳克一座绿色预制的木屋里，地板上铺着用北极熊和麝香牛皮制成的大块地毯，屋外铁架上晾晒的鲸脂散发出刺鼻气味。
A woman who has spent nearly all her life in Qaanaaq stands in my green prefabricated wooden hut, on the vast polar bear and musk-oxen skins that cover the floor.
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