英语听力：探索发现 2012-11-23 美洲大平原 American Serengeti—12

 Because these two bull mammoths both had broken tusks¹, they could have fought at closer quarters than they would do normally. Twisting and turning, they became locked in a deadly embrace. Even more bizarre, this twist of fate then caused a third fatality². Beneath one mammoth's shoulder blade was the skull³ of a coyote, pressed into the ground. 

 

While we can only speculate on just how the coyote died, it's likely it was scavenging around the decomposing⁴ carcasses, when one caved in and crushed it. 

 

Coyotes are still on the plains today. They hunt their food as well as scavenge carcasses,but small live prey⁵ can be more trouble than large dead ones. Prairie dogs are always on alert and once a trespasser⁶ is spotted⁷, the entire town vanishes into thin air. 

 

Prairie dogs aren't really dogs at all. They're rodents⁸ but coyotes are full-blooded members of the canine⁹ clan¹⁰ and like all dogs, they sometimes hunt in groups to tackle bigger prey. Some prey, however, are just too big, even for a pack of coyotes. 

 

But 13,000 years ago, there was another kind of canine hunter here, one that gave even the bison a run for their money. The wolf -- the ultimate pack hunter.

1 tusks   

n.（象等动物的）长牙( tusk的名词复数 )；獠牙；尖形物；尖头

参考例句：

• The elephants are poached for their tusks. 为获取象牙而偷猎大象。
• Elephant tusks, monkey tails and salt were used in some parts of Africa. 非洲的一些地区则使用象牙、猴尾和盐。 来自英语晨读30分（高一）

2 fatality   

n.不幸，灾祸，天命

参考例句：

• She struggle against fatality in vain.她徒然奋斗反抗宿命。
• He began to have a growing sense of fatality.他开始有一种越来越强烈的宿命感。

3 skull   

n.头骨；颅骨

参考例句：

• The skull bones fuse between the ages of fifteen and twenty-five.头骨在15至25岁之间长合。
• He fell out of the window and cracked his skull.他从窗子摔了出去，跌裂了颅骨。

4 decomposing   

腐烂( decompose的现在分词 )； （使）分解； 分解（某物质、光线等）

参考例句：

• The air was filled with the overpowering stench of decomposing vegetation. 空气中充满了令人难以忍受的腐烂植物的恶臭。
• Heat was obtained from decomposing manures and hot air flues. 靠肥料分解和烟道为植物提供热量。

5 prey   

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。

6 trespasser   

n.侵犯者；违反者

参考例句：

• The worst they'd ever dealt with was an occasionally trespasser or small-time thief. 他们过去对付的充其量是一个偶尔闯入者或是小偷小摸者。
• In such event the offending member or guest shall be trespasser. 在此情况下，违例的会员或嘉宾一概视作擅自进入论。

7 spotted   

adj.有斑点的，斑纹的，弄污了的

参考例句：

• The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
• Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。

8 rodents   

n.啮齿目动物( rodent的名词复数 )

参考例句：

• 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

9 canine   

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。

10 clan   

n.氏族，部落，宗族，家族，宗派

参考例句：

• She ranks as my junior in the clan.她的辈分比我小。
• The Chinese Christians,therefore,practically excommunicate themselves from their own clan.所以，中国的基督徒简直是被逐出了自己的家族了。