北极熊英文怎么写( 二 ) _北极

5.英文的介绍北极熊英文The polar bear (Ursus maritimus) is a bear native largely within the Arctic circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest carnivore species found on land. It is also the largest bear, together with the omnivore Kodiak bear which is approximately the same size.[3] An adult male weighs around 350–680 kg (770–1,500 lb),[4] while an adult female is about half that size. Although it is closely related to the brown bear, it has evolved to occupy a narrow ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting the seals which make up most of its diet.[5] Although most polar bears are born on land, it spends most of its time at sea, hence its name meaning "maritime bear", and can hunt consistently only from sea ice, spending much of the year on the frozen sea 。
6.谁能帮我写一篇关于介绍北极熊的文章（英文的）200字左右Polar Bears and ConservationPage 1 of 3 Click image to enlarge.Polar Bear Status ReportPolar bears are a potentially threatened (not endangered) species living in the circumpolar north. They are animals which know no boundaries. They pad across the ice from Russia to Alaska, from Canada to Greenland and onto Norway's Svalbard archipelago. No adequate census exists on which to base a worldwide population estimate, but biologists use a working figure of perhaps 22,000 to 25,000 bears with about sixty percent of those living in Canada.In most sections of the Arctic where estimates are available, polar bear populations are thought to be stable at present. Counts have been decreasing in Baffin Bay and the Davis Strait, where about 3,600 bears are thought to live, but are increasing in the Beaufort Sea, where there are around 3,000 bears.In the 1960s and 1970s, polar bears were under such severe survival pressure that a landmark international accord was reached, despite the tensions and suspicions of the Cold War. The International Agreement on the Conservation of Polar Bears was signed in Oslo, November 15, 1973 by the five nations with polar bear populations (Canada, Denmark which governed Greenland at that time, Norway, the U.S., and the former U.S.S.R.).The polar bear nations agreed to prohibit random, unregulated sport hunting of polar bears and to outlaw hunting the bears from aircraft and icebreakers as had been common practice. The agreement also obliges each nation to protect polar bear denning areas and migration patterns and to conduct research relating to the conservation and management of polar bears. Finally, the nations must share their polar bear research findings with each other. Member scientists of the Polar Bear Specialist Group meet every three to four years under the auspices of the IUCN World Conservation Union to coordinate their research on polar bears throughout the Arctic.With the agreement in force, polar bear populations slowly recovered. The Oslo agreement is one of the first and most successful international conservation measures enacted in the 21st century. 北极熊和保护页1 3 点击图像扩大。
北极熊情况报告北极熊是一个潜在地被威胁的（没危险的）种类居住在极地周围北部。他们是不知道界限的动物。
他们填塞横跨冰从俄国到阿拉斯加，从加拿大到格陵兰和挪威的Svalbard 群岛。充分人口调查不存在在哪些根据一个全世界人口估计，而是生物学家在加拿大使用或许22,000 头到25,000 头熊一个运作的图与大约百分之六十那些生活。
在估计是可得到的Arctic 的多数部分，北极熊群当前被认为是稳定。计数正在减少在Baffin 海湾和迪维斯海峡，大约3,600 头熊被认为居住，只是增加在Beaufort 海，有大约 3,000 头熊。
在60 年代和70 年代，北极熊是在这样的严厉生存压力下地标国际协议被到达，尽管冷战的紧张和怀疑。关于北极熊的保护的国际协议被签署在奥斯陆，1973 年11月15 日，由五个国家与北极熊群（加拿大，治理格陵兰那时，挪威，美国，和前苏联）的丹麦。