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第五幕——羽毛,飞翔和未来

(2011-03-08 16:40:37)
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杂谈

分类: knowledge

Act V—Feathers, Flight, and the Future

 

By the end of the Cretaceous, the continents we know were all in place. Dinosaurs are around the globe, each with extreme accessories and systems to thrive in their environment.

    在白垩纪末期,大陆分离已基本固定,形成了我们今天所知道的样子。恐龙遍布在这个星球的各个地方,每一种都有发展到极致的附件和系统,在各自的环境中兴旺的生存着。

 

They’ve evolved arguably some of the wackiest designs the world has seen. It’s largely accepted that a comet wiped out most dinosaurs in one fell swoop about 65 million years ago. But more and more we’re seeing the impact didn’t get them all. Some evolved into today’s birds.

    正像我们发现的那样,它们已经进化出了这个世界上见过的最有古怪的形状。关于恐龙灭绝,大多数人都接受这一说法:在6千5百万年前,一场凶猛的彗星雨撞落到地球上,恐龙因此而灭绝。但我们越来越发现,撞击虽然猛烈,却不能使全部恐龙消亡。其中一些演化成了今天的鸟类。

 

Richard Prume takes us through fossil evidence …compares them to modern birds.

    理查德·普鲁姆让我们观看化石证据,将它们同今天的鸟类相比较。

 

In some cases the similarities are striking. There’s ostrich-looking Mononykus, with feathers and bandy legs that could carry the dinobird some 45 mph. And Epidendrosaurus, a feathered, sparrow-sized dinosaur with long claws to climb trees.

    它们在有些地方真是惊人的相似。这种鸵鸟样的单爪龙具有羽毛和弯曲的腿,可以以大约每小时45英里的速度奔跑。树息龙是一种带有羽毛的、麻雀大小的恐龙,有用来爬树的长爪。

 

 第五幕——羽毛,飞翔和未来

And as new dino parts trickle in, they force scientists to rethink what they know.  Take, for example, the 8-foot-long arms, 10-inch claws of Deinocheirus the stuff of nightmares.

    随着新的恐龙骨骼化石一点一点地被发现,科学们不得不重新思考他们已知的恐龙。比如说,这种有8英尺长的双臂、10英寸长的爪子的恐手龙。真是恐怖至极。

  

With forelimbs longer than some automobiles, he’s got weapons to rival a samurai sword. He looks like he was assembled from the spare parts of other dinosaurs – and other animals. He’s got a body shape, feathers, and beak of an ostrich, the speed of some of the fastest lizards, and the height to rival T-rex. And those arms and claws! Totally bizarre.

    有了这比一些汽车还长的前肢,它具备了足以匹敌日本战刀一样的武器。它的样子看起来就像是用其他恐龙——还有其他动物的部件组装起来的一样。它有鸵鸟一样的身形、羽毛和长嘴,最为迅速的蜥蜴的速度,和霸王龙一样的身高。别忘了还有令人震惊的双臂和爪。真是不可思议。

 

No one knows for sure why Deinocheirus had hands like this – some say they were probably too dull to use for killing…he may have just used them to climb trees. An animal the size of an elephant, climbing a tree! With only the arms and claws to go on, we may never know.

    没人知道为什么恐手龙的手长成那样。有些人说恐手龙的手可能太迟钝了,都不能用于猎杀,只能用来爬树。但想一想,一个大象一般大的动物在爬树会是什么样子!只剩下胳膊和爪子在行进,我们可能永远都不会知道到底是怎么一回事。

 

But then the dinosaur story is really just beginning for us. There’s so much we don’t know about these beasts – and there are so many dinosaurs we’ve never seen. They’re out there waiting.

    但恐龙的故事的确才刚刚开始。关于它们我有太多东西都不知道。仍有许许多多的恐龙我们都还没见过。它们正在那里等待着我们。

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