英语听力：2013-07-26 《恐龙的战争》3 顽强防御—18

 They couldn’t see directly behind themselves, and they actually would have problems seeing directly in front of themselves. 

 

It’s almost a different visual world than one that we can imagine. 

 

The Parasaurolophus have a solution to this problem. 

 

When you’ve got multiple Parasaurolophus living together, that means multiple eyes to scan the horizon. And if one of you is feeding, munching¹ on the plants on the ground, the other can keep its eyes out, looking around, keeping an eye out for Tyrannosaur.

 

But not all plant eaters in the Cretaceous live as a group. Ankylosaurus are loners. They depend on a powerful tail club and steel-like body armor to defend themselves.

 

Without the herd³ to watch your back, Ankylosaurus has to watch its own. That’s a job made even harder. As its worst enemy, T-Rex can hunt under the cover of darkness.

 

Fortunately, an Ankylosaurus has another effective weapon in its armory—a highly refined sense of smell.

 

The nasal region of Ankylosaurus and its kin² is one of the most specialized⁴ parts of its anatomy⁵.

 

For an Ankylosaurus, a T-Rex’s distinctive⁶ odor is a dead giveaway. 

 

This is an animal for whom the sense of smell was more important, potentially, than the sense of vision. Ankylosaurus’ nasal passages wind through the skull⁷, significantly increasing their surface area. This enlarged space is populated by millions of odor...

 

1 munching   

v.用力咀嚼（某物），大嚼( munch的现在分词 )

参考例句：

• He was munching an apple. 他在津津有味地嚼着苹果。 来自《简明英汉词典》
• Munching the apple as he was, he had an eye for all her movements. 他虽然啃着苹果，但却很留神地监视着她的每一个动作。 来自辞典例句

2 kin   

n.家族，亲属，血缘关系；adj.亲属关系的，同类的

参考例句：

• He comes of good kin.他出身好。
• She has gone to live with her husband's kin.她住到丈夫的亲戚家里去了。

3 herd   

n.兽群，牧群；vt.使集中，把…赶在一起

参考例句：

• She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
• He had no opinions of his own but simply follow the herd.他从无主见，只是人云亦云。

4 specialized   

adj.专门的，专业化的

参考例句：

• There are many specialized agencies in the United Nations.联合国有许多专门机构。
• These tools are very specialized.这些是专用工具。

5 anatomy   

n.解剖学，解剖；功能，结构，组织

参考例句：

• He found out a great deal about the anatomy of animals.在动物解剖学方面，他有过许多发现。
• The hurricane's anatomy was powerful and complex.对飓风的剖析是一项庞大而复杂的工作。

6 distinctive   

adj.特别的，有特色的，与众不同的

参考例句：

• She has a very distinctive way of walking.她走路的样子与别人很不相同。
• This bird has several distinctive features.这个鸟具有几种突出的特征。

7 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。