【英语时差8,16】搜寻coywolf
时间：2019-02-15 作者：英语课 分类：英语时差8，16
Once upon a time, wolves roamed the northeastern regions of the United States in plentiful 1 packs. But about a century ago, human development drove wolves away. They retreated north, into Canada, and west into Michigan, Wisconsin and other Midwestern states.
Now, though, the wolf is making a comeback in upstate New York. Sort of. More accurately 2, wolves are returning in the form of coyote?wolf hybrids 3.
Scientists suspect that so?called coywolves first began appearing around the 1920s. Coyotes migrating from western states began to interbreed with wolves in Canada.
Their offspring are larger than normal coyotes, which hunt rodents 4 and small mammals. Like wolves, coywolves hunt deer. Also like wolves, coywolf males are larger than females. And they hunt in packs and roam forests, similar to wolves.
But where wolves shy away from suburbs and other human settlements, the hybrids have inherited the fearlessness of pure coyotes. In some areas in Canada, coywolf packs have been seen attacking sheep, cattle, and other domesticated 5 animals in broad daylight.
Coywolves are, in effect, something like a new species. Unlike mules 6 and some other hybrids, they’re able to reproduce. And they’re beginning to fill many of the ecological 7 niches 8 in the northeastern United States abandoned by wolves.
- Their family has a plentiful harvest this year.他们家今年又丰收了。
- Rainfall is plentiful in the area.这个地区雨量充足。
- It is hard to hit the ball accurately.准确地击中球很难。
- Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
- All these brightly coloured hybrids are so lovely in the garden. 花园里所有这些色彩鲜艳的杂交花真美丽。 来自辞典例句
- The notion that interspecific hybrids are rare is ill-founded. 有一种看法认为种间杂种是罕见的，这种看法是无根据的。 来自辞典例句
- Rodents carry diseases and are generally regarded as pests. 啮齿目动物传播疾病，常被当作害虫对待。 来自《简明英汉词典》
- Some wild rodents in Africa also harbor the virus. 在非洲，有些野生啮齿动物也是储毒者。 来自辞典例句
- He is thoroughly domesticated and cooks a delicious chicken casserole. 他精于家务，烹制的砂锅炖小鸡非常可口。 来自《简明英汉词典》
- The donkey is a domesticated form of the African wild ass. 驴是非洲野驴的一种已驯化的品种。 来自《简明英汉词典》
- The cart was pulled by two mules. 两匹骡子拉这辆大车。
- She wore tight trousers and high-heeled mules. 她穿紧身裤和拖鞋式高跟鞋。
- The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
- Each animal has its ecological niche.每种动物都有自己的生态位.