英语听力：2013-03-29 恐龙之战之极限生存 Extreme Survivors—5

 There probably weren’t many animals of Cretaceous that would dare to try to grab a baby Tyrannosaurus Rex. Quetzalcoatlus could probably manage it.

 

If you see a stork¹ on the Nile today eating a baby crocodile, you can imagine in your mind Quetzalcoatlus eating a baby Tyrannosaur 65 million years ago.

 

You can never know how well Tyrannosaurs could count, but I imagine mom would be a little bit perplexed² when suddenly she was down to five instead of six. And there was no sign of where it had gone. 

 

For a baby Tyrannosaurus Rex, danger lurks³ everywhere, but at least he has a fighting chance. For infant Sauroposeidon, it’s a very different story. They are born defenseless and alone.

 

If you want to have intensive parental⁴ care, you can only take care of a limited number of offspring. If you want to have lots of offspring, you have to have little or no parental care, and Sauropods took that route.

 

From birth, Sauroposeidon is in a race for survival. For every 3,000 hatchlings, only one will make it to adulthood⁵. And to become that one survivor⁶, it must fend⁷ for itself for years. For this future giant, there’s just one rule—grow or die.

 

When we look at Sauropod tracksites where we have tracks of hundreds of individuals altogether, there’s a curious thing. These big groups of Sauropods always include only the adults and the animals down to about 1/3 of full size.

 

Growing up alone means growing up in constant danger. 

 

So think about a juvenile⁸ Sauroposeidon. It’s the size of a pony⁹ or a horse. It has no sharp teeth, no plates, no spikes¹⁰, no horns, no armor. It’s not even very fast. And so what would happen to those juvenile Sauroposeidons if they are faced by a pack of Deinonychus? Well they would die.

 

And Sauroposeidon navigates¹¹ a world of hungry predators¹².

1 stork   

n.鹳

参考例句：

• A Fox invited a long-beaked Stork to have dinner with him.狐狸请长嘴鹳同他一起吃饭。
• He is very glad that his wife's going to get a visit from the stork.他为她的妻子将获得参观鹳鸟的机会感到非常高兴。

2 perplexed   

adj.不知所措的

参考例句：

• The farmer felt the cow,went away,returned,sorely perplexed,always afraid of being cheated.那农民摸摸那头牛，走了又回来，犹豫不决，总怕上当受骗。
• The child was perplexed by the intricate plot of the story.这孩子被那头绪纷繁的故事弄得迷惑不解。

3 lurks   

n.潜在，潜伏；（lurk的复数形式）vi.潜伏，埋伏（lurk的第三人称单数形式）

参考例句：

• Behind his cool exterior lurks a reckless and frustrated person. 在冷酷的外表背后，他是一个鲁莽又不得志的人。 来自《简明英汉词典》
• Good fortune lies within Bad, Bad fortune lurks within good. 福兮祸所倚，祸兮福所伏。 来自互联网

4 parental   

adj.父母的；父的；母的

参考例句：

• He encourages parental involvement in the running of school.他鼓励学生家长参与学校的管理。
• Children always revolt against parental disciplines.孩子们总是反抗父母的管束。

5 adulthood   

n.成年，成人期

参考例句：

• Some infantile actions survive into adulthood.某些婴儿期的行为一直保持到成年期。
• Few people nowadays are able to maintain friendships into adulthood.如今很少有人能将友谊维持到成年。

6 survivor   

n.生存者，残存者，幸存者

参考例句：

• The sole survivor of the crash was an infant.这次撞车的惟一幸存者是一个婴儿。
• There was only one survivor of the plane crash.这次飞机失事中只有一名幸存者。

7 fend   

v.照料（自己），（自己）谋生，挡开，避开

参考例句：

• I've had to fend for myself since I was 14.我从十四岁时起就不得不照料自己。
• He raised his arm up to fend branches from his eyes.他举手将树枝从他眼前挡开。

8 juvenile   

n.青少年，少年读物；adj.青少年的，幼稚的

参考例句：

• For a grown man he acted in a very juvenile manner.身为成年人，他的行为举止显得十分幼稚。
• Juvenile crime is increasing at a terrifying rate.青少年犯罪正在以惊人的速度增长。

9 pony   

adj.小型的；n.小马

参考例句：

• His father gave him a pony as a Christmas present.他父亲给了他一匹小马驹作为圣诞礼物。
• They made him pony up the money he owed.他们逼他还债。

10 spikes   

n.穗( spike的名词复数 )；跑鞋；（防滑）鞋钉；尖状物v.加烈酒于( spike的第三人称单数 )；偷偷地给某人的饮料加入（更多）酒精（ 或药物）；把尖状物钉入；打乱某人的计划

参考例句：

• a row of iron spikes on a wall 墙头的一排尖铁
• There is a row of spikes on top of the prison wall to prevent the prisoners escaping. 监狱墙头装有一排尖钉，以防犯人逃跑。 来自《简明英汉词典》

11 navigates   

v.给（船舶、飞机等）引航，导航( navigate的第三人称单数 )；（从海上、空中等）横越；横渡；飞跃

参考例句：

• Dolpins also navigates by some kind of echo system. 原来海豚也是借助某种回声系统寻向的。 来自辞典例句
• Navigates in menus, lists, choice screens and into edited texts. 可以操纵菜单、列表、屏幕选项和进入编辑文本。 来自互联网

12 predators   

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》