SSS 2010-01-07
时间：2019-01-08 作者：英语课 分类：Scientific American(一)月
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 Celsius 1. Enough to give nightmares to musk 2 ox and Arctic hares, the favorite prey 3 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 jaunts 4 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 canine 5 predators 6 do to survive the brutal 7 Arctic winter. Now the question becomes how the wolves know when to stop using the sea ice once the spring thaw 8 begins.
—David Biello
- 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。
- 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。
- Stronger animals prey on weaker ones.弱肉强食。
- The lion was hunting for its prey.狮子在寻找猎物。
- 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
- 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。
- 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》
- 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。