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SSS 2010-01-07

时间:2010-05-20 01:31来源:互联网 提供网友:mark@li   字体: [ ]
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It's hard to mistake that sound. Now imagine hearing it during a night that can last for months and where temperatures drop as low as –37 degrees Celsius1. Enough to give nightmares to musk2 ox and Arctic hares, the favorite prey3 of the long-legged white wolves of the Arctic


These wolves cover a lot of frozen ground. Researchers put a GPS collar on a pack leader they named Brutus and found that he roamed as many as 41 kilometers in a 12 hour period. That includes jaunts4 across the newly formed sea ice between the pack's home on Ellesmere Island and adjacent islands in Nunavut. 


Of course, it would be impossible for scientists to personally track the white wolves in winter. So the collar communicates with GPS and Arcos satellites. The telemetry reveals that these wolves are often on the move. The 90-pound Brutus and his pack of at least a dozen wolves covered 2,726 kilometers between July 8—the date during the month-long Arctic summer when Brutus was collared—and November 30, within a region of more than 1,900 square kilometers.


In the summer, the wolves are homebodies, taking care of new pups. But this new information helps solve the mystery of what the canine5 predators6 do to survive the brutal7 Arctic winter. Now the question becomes how the wolves know when to stop using the sea ice once the spring thaw8 begins.


—David Biello
 


点击收听单词发音收听单词发音  

1 Celsius AXRzl     
adj.摄氏温度计的,摄氏的
参考例句:
  • The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
  • The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
2 musk v6pzO     
n.麝香, 能发出麝香的各种各样的植物,香猫
参考例句:
  • Musk is used for perfume and stimulant.麝香可以用作香料和兴奋剂。
  • She scented her clothes with musk.她用麝香使衣服充满了香味。
3 prey g1czH     
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
参考例句:
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
4 jaunts 1e3c95614aceea818df403f57a703435     
n.游览( jaunt的名词复数 )
参考例句:
  • How carefree were those jaunts to the A& P.No worries. 去A&P的路途是那样的轻松,无忧无虑。 来自互联网
  • How carefree were those jaunts to A & P. No worries. 去a&p的路途是那样的轻松,无忧无虑。 来自互联网
5 canine Lceyb     
adj.犬的,犬科的
参考例句:
  • The fox is a canine animal.狐狸是犬科动物。
  • Herbivorous animals have very small canine teeth,or none.食草动物的犬牙很小或者没有。
6 predators 48b965855934a5395e409c1112d94f63     
n.食肉动物( predator的名词复数 );奴役他人者(尤指在财务或性关系方面)
参考例句:
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
7 brutal bSFyb     
adj.残忍的,野蛮的,不讲理的
参考例句:
  • She has to face the brutal reality.她不得不去面对冷酷的现实。
  • They're brutal people behind their civilised veneer.他们表面上温文有礼,骨子里却是野蛮残忍。
8 thaw fUYz5     
v.(使)融化,(使)变得友善;n.融化,缓和
参考例句:
  • The snow is beginning to thaw.雪已开始融化。
  • The spring thaw caused heavy flooding.春天解冻引起了洪水泛滥。
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TAG标签:   SSS  telemetry
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