Creatures that live in the dark may lose their sight over evolutionary time.
凯伦·霍普金报道。生活在黑暗环境下的生物可能在演化过程中视力逐渐下降。
Creatures that live in the dark may lose their sight over evolutionary time. They may even lose their eyes entirely.
在黑暗中生活的动物可能会在进化过程中失去视力，甚至可能一点东西都看不见。
These finds have fleshed out details about the emergence of their kind over evolutionary time, including the quintessential carnivore.
这些新发现补充了些关于恐龙是如何在进化史中出现的详细资料，其中当然包含了霸王龙这种典型的食肉动物。
They also suggest that this biochemical mechanism has been conserved over evolutionary time, since the actual origin of eukaryotic circadian clocks.
他们还提示，自真核细胞生物钟起源以来，这一生物化学的机制在进化的时候得到了保留。
Over evolutionary time, they lose unnecessary genes and become streamlined, ultimately leaving them with a tiny fraction of the genes they started out with: only the ones they really need.
在进化的时候，它们失去了不必要的基因，变得精简，最终留下了它们基因原始的一小部分：只有那些它们真正需要的。
Anthropology has extensively explored the evolution of the female hip bones, which expanded over time to accommodate the evolutionary growth of the heads of human babies.
一直以来，人类学广泛探索了女性髋骨的进化。髋骨随时间其空间不断扩大，以适应婴儿头部的进化发育。
Over the aeons of evolutionary time, the interaction of these multiple constraints has produced many viable phenotypes, all compatible with survival and reproduction.
经过了漫长的进化年代，如此诸多的因素相互制约相互影响，产生了无数种可能的表型，它们生存，它们繁衍。
For the first time researchers have attempted to chart the evolutionary history of the brain across different groups of mammals over 60 million years.
研究人员尝试绘制出6000万年以来不同哺乳动物物种大脑的进化历程，这在历史上实属首次。
These parasites are often found stranded on lineages of hosts over long periods of time, permitting researchers to learn about evolutionary changes in the host based on changes in the parasite.
很长的时间以内这些寄生物都能经常在寄主的衣服上被发现，使得研究人员能够基于寄生物的演变来研究寄主的进化演进。
The descendants of long-time urban dwellers show increased genetically-driven resistance to tuberculosis, due to evolutionary selection pressure over millennia.
长期生活在城市的居民，其后代的遗传基因里，对肺结核的抵抗力更强。
The descendants of long-time urban dwellers show increased genetically-driven resistance to tuberculosis, due to evolutionary selection pressure over millennia. Christopher Intagliata reports.
长期生活在城市的居民，其后代的遗传基因里，对肺结核的抵抗力更强。究其原因，是几千年来城市生活进化选择的压力为人类所做出的贡献。
Evolutionary game theory improves upon traditional game theory by providing a dynamics describing how the population will change over time.
进化博弈理论对传统博弈论做出了改进，它能够对群体行为随着时间的推移提供动态描述。
The fact that the unchanging regions are so conserved over the course of evolutionary time means that they perform vital roles and that the virus cannot let them change without perishing.
事实上那些不变的区域在进化过程中如此保守，意味着它们担任着重要的角色，一旦改变病毒就会死亡。
Yes, over 5.3 Trillion inhabited evolutionary worlds at this time.
是的，此时大约有5万亿个进化行星。
Somehow at this time I realize from direct experience that there is indeed an enormous Cosmic evolutionary step that is occurring all over the world right at this moment.
不知为何此时我直觉上意识到此时全世界确实行进在一个伟大的宇宙进化之路上。
Somehow at this time I realize from direct experience that there is indeed an enormous Cosmic evolutionary step that is occurring all over the world right at this moment.
不知为何此时我直觉上意识到此时全世界确实行进在一个伟大的宇宙进化之路上。
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