据英国《每日邮报》报道，近日，一组野生动物爱好者乘游船远涉北冰洋，去探险、观赏极地动物。一天这些人正准备进午餐时，突然遭遇了不速之客：一只北极熊光临游船，探头探脑地偷看游船厨房间有什么好吃的。
它将头伸进了厨房间舷窗，好好地观察是不是能找到什么食物。
最终，北极熊也没有找到什么食物，只好扫兴而归。
北极熊是世界上第二大的陆地食肉动物，雄性北极熊身长大约240-260cm，体重一般为400-800公斤。而雌性北极熊体形约比雄性小一半左右，身长约190-210cm，体重约200-300公斤。到了冬季睡眠时刻到来之前，由于脂肪将大量积累，它们的体重可达500公斤。目前生活在世界上的北极熊大约有2万多只，数量相对稳定。由于全球气温的升高，北极的浮冰逐渐开始融化，北极熊昔日的家园已遭到一定程度的破坏，猎物也相应减少，另外，即便游泳技术再出色，它们也无法长时间地待在海里，日益开阔的海面更增加了它们溺弊的危险。科学家警告，由于全球变暖、北极冰面融化，到2050年地球上北极熊数量可能减少三分之二，其中阿拉斯加地区的北极熊将绝迹。(唐宁，via 新浪网)
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译文:
Casual Visitor - The Polar Bear
According to Daily Mail , recently, a group of wildlife-lover take yacht ahead to the Arctic Ocean, exploring and admiring the polar animals. One day, these people were ready for lunch, suddenly got an unasked guest: a polar bear, popping its head into kitchen for food.
It stretched head into kitchen's porthole, observing whether there was anything to eat.
Finally, the bear got nothing, leaving disappointedly.
The polar bear is the second largest land carnassial beast in the world. Male bear’s length reaches 240-260 cm, usually weighed about 400-800kg. Female, on the other hand, only has the half-size of a male one’s, length's approximately 190-210cm, weighed about 200-300 kg. But they could be weighed 500kg when hibernation period comes, due to huge amount of fat accumulation. Currently, there are about 20,000 plus polar bears living in the world, and this number is relatively steady. Due to rising temperature, ice in the North Polar starts to melt, which jeopardizes polar bear’s habitat, what’s worse, their food is reducing too. On the other hand, even the bears have great swimming skills, they could not stay in the water for too long, because the increasingly expanding ocean surface makes them getting drowned more easily. Scientists warn that the number of polar bear will reduce 2/3 by 2050 resulting from globe warming and melting ice. Of these, Alaska bear will be extinct by then. (Tang Ning, via www.sina.com)
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