First, Sparrow posed a series of easy questions " Are dinosaurs extinct?"
首先，斯派洛列出了一系列简单的问题(“恐龙灭绝了？”)
Perhaps dinosaurs could not tolerate these extreme temperature changes and became extinct.
也许恐龙无法忍受这些极端的温度变化于是灭绝了。
Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct.
不管什么原因，恐龙以及地球上几乎半数以上的物种灭绝了。
Richard Prum: Dinosaurs are all around us. They didn't go extinct.
理查德·普鲁姆：恐龙就在我们身边，它们没有灭绝。
"The big thing is many people have heard why dinosaurs went extinct, but the question why they came to be is much more interesting," Whiteside said.
怀特塞德表示，“很多人都听说过恐龙灭绝，这是件大事，但它们为什么会走到这一步，这个问题或许更令人感兴趣。”
Certain dinosaurs may go extinct — again — since they may have only existed in the minds of paleontologists.
某些恐龙可能会消失——再一次——因此它们可能只会存在于古生物学家的脑海中了。
Conodonts went extinct at the end of the Triassic Period, about the time dinosaurs were evolving.
牙形刺在三叠纪末期灭绝了，这正是恐龙开始演化的时代。
Many primitive lineages went extinct as sharks and bony fish became masters of the waters and tetrapods, the four-legged animals that eventually evolved into dinosaurs and mammals, conquered the land.
许多原始生物灭绝，鲨鱼和硬骨鱼成为水域的主人，四足动物最终进化成了恐龙和哺乳动物，征服了陆地。
Scientists do not knowwhy dinosaurs became extinct, but some theories postulate that changersin geography, climate, and sea levels were responsible。
科学家不知道恐龙为何绝种了，但是一些理论推断是地理，气候和海平面的变化造成的。
Related to the pearly nautilus, these spiral-shelled Marine creatures went extinct along with the dinosaurs around 65 million years ago.
菊石是鹦鹉螺的近亲，这种外壳呈螺旋状的海生生物在6500万年前与恐龙一起灭绝了。
The researchers at Oxford University charted the evolution of mammal brains over the last 60million years – from a few million years after the dinosaurs became extinct to the modern day.
牛津大学的研究者用表格的形式对哺乳动物在过去600亿年里的脑进化进行了描述 - 即从恐龙灭绝后的几百万年到今天的这段时间里。
If food became scarce at the time the dinosaurs became extinct 65 million years ago, this could have made it harder for them to survive.
六千五百万年前是恐龙灭绝的时期，如果当时食物变得匮乏，那么恐龙就更难存活下来。
As other large dinosaurs became extinct, this left the path clear for Raptorex to expand in body size and ultimately become the giant Tyrannosaurus rex.
随着其他大型恐龙的灭绝，使得Raptorex有机会将体型进化成硕大型，最终成为巨大的霸王龙。
Modern birds are direct descendants of Maniraptoran dinosaurs, experts say. The creatures that went extinct millions of years ago are now called "non-avian dinosaurs."
恐龙研究专家认为，现代鸟类直接起源于手盗龙类，其他已灭绝的恐龙现在被称之为“非鸟恐龙”。
A kind of animal become extinct when it dies out. Like dinosaurs. Dinosaurs are extinct.
一种动物种类全死掉后，就是灭绝。就像恐龙一样，它已经灭绝了。
(extinct) It is reported that dinosaurs have been extinct on the earth for millions of years.
据报道，恐龙已经在地球上绝迹好几百万年了。
From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning.
不时地会有人提议，克隆技术将有可能使地球上已经消失的动物(如恐龙)复活。
Scientists do not know why dinosaurs became extinct.
科学家不知道恐龙为何绝种了。
The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the idea struck a mixture of fear and excitement into people's hearts.
在《侏罗纪公园》这部影片中，有一位科学家克隆了好几种不同的绝种恐龙。类似这样的电影很受欢迎，证明了这一想法使人们感到既兴奋又恐惧。
Dinosaurs have been extinct for millions of years.
恐龙已经灭绝了几百万年了。
Dinosaurs are extinct animals.
恐龙是已经绝种的动物。
Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible.
科学家不知道恐龙为何绝种了，但是一些理论推断是是地理，气候和海平面的变化造成的。
Scientists do not know why dinosaurs became extinct, but some theories postulate that changes in geography, climate and sea levels were responsible.
科学家们不知道恐龙为何灭绝，但一些理论假定这与地理气候条件和海平面的某些变化有关。
They are one of the few species so ancient that they watched the dinosaurs evolve and become extinct.
他们是少数如此古老的品种之一，他们看到恐龙类进化和变成灭绝。
Today, the dinosaurs are extinct long ago, and the king crab after experienced a disaster has miraculously survived, but did not change shape. What is the cause then?
如今恐龙早已灭绝了，而鲎经历了一场场灾难，奇迹般地存活至今，而且形态也没有发生变化，这是什么原因呢？
Tyrannosaurus rex arose during the Cretaceous period about 85 million years ago and thrived as a top land predator until the dinosaurs went extinct 20 million years later.
霸王龙出现，在白垩纪时期约85万年前，和蓬勃发展作为最高的土地捕食，直到恐龙灭绝二千万年后。
Tyrannosaurus rex arose during the Cretaceous period about 85 million years ago and thrived as a top land predator until the dinosaurs went extinct 20 million years later.
霸王龙出现，在白垩纪时期约85万年前，和蓬勃发展作为最高的土地捕食，直到恐龙灭绝二千万年后。
应用推荐