For most of our evolutionary history, our ancestors lived in tribes.
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。
Competition among species is of considerable evolutionary importance.
物种间的竞争在进化上具有相当重要的意义。
As for spinosaurus, diet was just the tip of the evolutionary iceberg.
对于棘龙来说，饮食只是进化的冰山一角。
The evolutionary history of plants has been marked by a series of adaptations.
植物的进化史以一系列适应性变化为标志。
The technical term for an evolutionary throwback is an "atavism", from the Latin atavus, meaning forefather.
“进化返祖”的专业术语是“atavism”，源自拉丁语的“atavus”，意为祖先。
They're looking into whether the birds' way of searching for food gives them any possible evolutionary advantage.
他们正在研究鸟类寻找食物的方式是否会给它们带来任何可能的进化优势。
Not only are evolutionary throwbacks possible, they sometimes play an important role in the forward march of evolution.
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。
He argues that our evolutionary roots mean we still depend heavily on physical and face-to-face contact to be able to create ties.
他认为，我们的进化根源意味着，我们仍然极大依赖身体及面对面的接触来建立联系。
Today green algae live mainly in freshwater, suggesting that their early evolutionary history may have occurred in freshwater habitats.
如今的绿藻大多生活在淡水水域中，这一点说明它们的早期进化史可能起源于淡水生境。
New methods developed in genetic research have led taxonomists to revise their views on the evolutionary relationships between many species.
遗传研究中出现的新方法使分类学家修正了他们对许多物种间进化关系的看法。
Romantic love has clear evolutionary roots but our views about what makes an ideal romantic relationship can be swayed by the society we live in.
浪漫的爱情有着清晰的进化根源，但我们对理想爱情的看法可能会受到我们所生活的社会的影响。
Darwin's original thesis, and the viewpoint supported by evolutionary gradualists, is that species change continuously but slowly and in small increments.
达尔文最初的论点以及进化渐进主义者所支持的观点是，物种的变化是持续的，但非常缓慢，增量也很小。
Unearthed in China, fossils of feathered dinosaurs offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds.
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。
Importing African cheetahs to the western United States could, in theory, put the pronghorn back onto its natural evolutionary trajectory according to these biologists.
从理论上讲，把非洲猎豹引进美国西部，可以让叉角羚重新回到生物学家所说的自然进化轨道上。
"Only a small percentage of alien species cause problems in their new habitats," said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.
田纳西大学生态学和进化生物学教授唐·史密斯说：“只有一小部分外来物种会在新栖息地引发问题。”
"Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.
“只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。
This 700-million-year-old formation gives few clues to the origins of modern animals, however, because paleontologists believe it represents an evolutionary experiment that failed.
然而，这个7亿年历史的地层几乎不能为现代动物的起源提供任何线索，因为古生物学家认为它代表的是一个失败的进化试验。
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.
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。
In a paper published last year, biologist Gunter Wagner of Yale University reported some work on the evolutionary history of a group of South American lizards called Bachia.
在去年发表的一篇论文中，耶鲁大学的生物学家冈特·瓦格纳报告了一种名为“Bachia”的南美蜥蜴的进化史。
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.
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。
This is a huge evolutionary step.
这是进化上的飞跃。
Spencer believed that society changed according to evolutionary laws.
斯宾塞相信社会会根据进化论的原则演变。
Scientists study Lake Baikal to better understand evolutionary science.
科学家研究贝加尔湖，以更好地了解进化科学。
As its name suggests, evolutionary design borrows its ideas from biology.
正如其名字所表示的那样，“进化式设计”的技术是从生物学借鉴过来的。
Human culture is a decentralized evolutionary system if there ever was one.
如果说确实存在着去中心化的进化系统的话，那么人类的文化就是这样一种系统。
Human culture is a decentralized evolutionary system if there ever was one.
如果说确实存在着去中心化的进化系统的话，那么人类的文化就是这样一种系统。
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