许多雄鸟的鲜艳羽毛被认为是为吸引雌鸟而进化来的。
The bright plumage of many male birds was thought to have evolved to attract females.
对于棘龙来说，饮食只是进化的冰山一角。
As for spinosaurus, diet was just the tip of the evolutionary iceberg.
一场激烈的辩论使最近的进化论研究领域开始活跃起来。
在人类进化史的绝大多数时间里，我们的祖先都生活在部落里。
For most of our evolutionary history, our ancestors lived in tribes.
进化返祖现象不仅有可能，有时还在进化的发展中扮演重要的角色。
Not only are evolutionary throwbacks possible, they sometimes play an important role in the forward march of evolution.
可以想象，如果猎豹还在的话，叉角羚会继续进化，也许会跑得更快。
It is conceivable that the pronghorn antelope would have continued to evolve, get faster maybe, if the cheetahs were still around.
也许这是打哈欠进化为社交线索的一种暗示——“到我们大家睡觉的时间了”。
That may be a hint that yawn evolved as a social cue—"time for us all to go to bed".
最重要的是，科学家们开始意识到，气候变化对人类物种的进化产生了重大影响。
Most important, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species.
达尔文把蜂箱作为进化的一个例子，称其“在节约劳动和蜂蜡方面是绝对完美的”。
Darwin used the beehive as an example of evolution, saying it "was absolutely perfect in economising labour and wax".
越来越多的证据表明，陨石的撞击对地球产生了重要的影响，特别是在生物进化领域。
There is increasing evidence that the impacts of meteorites have had important effects on Earth, particularly in the field of biological evolution.
生物学家可以通过比较不同物种中相同基因的DNA序列来推断物种之间的进化关系。
Biologists can infer how species are related evolutionarily by comparing DNA sequences for the same genes in different species.
哭泣作为一种情感的表达是人类独有的，这在人类进化和人类文化的发展中发挥了重要的作用。
Crying as an expression of feeling is unique to humans and has played an essential role in human evolution and the development of human cultures.
但哭泣作为一种情感的表达是人类独有的，这在人类进化和人类文化的发展中发挥了重要的作用。
But crying as an expression of feeling is unique to humans and has played an essential role in human evolution and the development of human cultures.
在中国出土的有羽毛的恐龙化石为恐龙和鸟类之间的密切进化关系提供了迄今为止最引人注目的证据。
Unearthed in China, fossils of feathered dinosaurs offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds.
简而言之，我们的大脑进化出了让我们体验同情的回路，这反过来又使文明和基于同情的伦理成为可能。
In short, our brain evolved circuits to allow us to experience sympathy, which in turn made civilization, and ethics based on sympathy, possible.
莱斯特大学教授戴维·哈珀表示：“火烈鸟的腿上已经进化出了非常坚韧的皮肤，这样它们就可以忍受盐水。”
"Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water," says David Harper, a professor at the University of Leicester.
这些发现与你对进化论的期望是一致的：那些喜欢交朋友和帮助别人的人能够收集足够的资源来度过艰难时期。
These findings are in agreement with what you would expect from the evolutionary theory: those who like to make friends and help others can gather enough resources to make it through tough times.
“从本质上说，我非常同意作者的观点。”德国马克斯·普朗克进化人类学研究所的生物学家兼主任斯温特·帕波说。
"Essentially, I could not agree more with the authors," said Svante Paabo, a biologist and director of the Max Planck Institute for Evolutionary Anthropology in Germany.
它们进化出了一种特殊的“加热器”，由经过改造的肌肉组织构成，可以温暖眼睛和大脑，使这些关键器官保持最佳状态。
They have evolved special "heaters" of modified muscle tissue that warm the eyes and brain, maintaining peak performance of these critical organs.
例如，彼得·谢尔登对于三叶虫的研究，那是一种已灭绝的身体分节的海洋生物，他的研究让我们得以一窥三百万年以来一个海洋环境的进化过程。
For example, Peter Sheldon' s studies of trilobites, a now extinct marine animal with a segmented body, offer a detailed glimpse into three million years of evolution in one marine environment.
最终，它们再一次回到陆地，进化成为陆龟，其中的一些现在生活在非常干旱的沙漠中。
Finally they returned yet again to the land as tortoises, some of which now live in the driest of deserts.
曼彻斯特大学的进化生物学家苏珊娜·舒尔茨博士说，这项研究是值得称赞的，它试图丰富我们对人类语言进化的知识。
Dr. Susanne Shultz, an evolutionary biologist from the University of Manchester, said the study was praiseworthy in seeking to enrich our knowledge of the evolution of human language.
地球的气候允许生命在其上进化。
地球的气候允许生命在其上进化。
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