According to the first of these theories, each individual has evolved, aided by natural selection, an adaptation to the rhythmic environment.
根据第一个理论，在自然选择的帮助下，每个个体经过进化都适应了这个有规律的环境。
According to the first of these theories, each individual have evolved, aided by natural selection, an adaptation to the rhythmic environment.
根据第一个理论，在自然选择的帮助下，每个个体都进化出了对有节奏环境的适应。
But other phenomena that look like diseases are known to be maintained by natural selection.
但是据了解，其他一些看似疾病的现象则被视作源于自然选择。
The book was “On the Origin of Species”. And the challenge was the theory of evolution by natural selection.
这个人就是查理斯•罗伯特•达尔文，这本书叫做《物种起源》，而发起的挑战则是基于自然选择说的进化论。
Viruses have genes, can reproduce and are subject to the evolutionary pressures imposed by natural selection.
病毒拥有基因，能够繁殖并且受制自然选择的进化压力。
But that, too, has its difficulties. Just how much a process like this can be shaped by natural selection is unclear.
但这一说也有其困难，它在多大程度上收到自然选择的影响，目前尚不清楚。
An early visitor was Charles Darwin nearly 175 years ago, on a trip that inspired his theory of evolution by natural selection.
大约在175年前，一位早期的访客在旅途中得到灵感-自然选择学说产生了，他就是查尔斯·达尔文。
Evolution by natural selection has structured these insect search committees so that they make the best possible decisions.
自然选择使得这些昆虫以群居的形式出现保证作出做好的决定。
The idea of evolution by natural selection is not hard to grasp. It just requires connecting some uncontentious propositions.
自然选择导致进化的观点并不难理解，只需要把几个得到普遍认同的观点联系起来就能够得到。
English natural scientist whose 'On the Origin of Species' formulated a theory of evolution by natural selection (1809-1882).
英国博物学家（1809-1882），他的《生物起源论》阐明了自然选择的进化论学说。
It is possible that those fears associated with increased odds of survival in our ancestors evolved over time by natural selection.
有可能和增加我们祖先生存几率有联系的那些恐惧是通过自然选择长期进化而来。
Evolution is driven by natural selection, the correlation between organism traits and reproductive success, as well as random drift.
进化是自然选择驱动，生物之间的特征和繁殖成功率的关系，以及随机漂移。
Even if choice is guided by unconscious instinct, that instinct will usually have been honed by natural selection to do the right thing.
即便选择是无意识的，由于人的本能倾向于做对事，其结果也不会太坏。
Darwin focused on the existence of evolution by natural selection; the mechanisms that drive the process were a complete mystery to him.
Darwin着眼于通过自然选择而存在的进化，对他来说驱动这个过程的机制完全是一个谜。
Any organism modified in a laboratory is unlikely to make it in the outside world in competition with creatures toughened up by natural selection.
任何经实验室修改过的生物，不大可能在外界同经过自然选择的考验而生存下来的生物相竞争。
Neutral mutation — Evolution at the molecular level is primarily determined by mutational input and random genetic drift, rather than by natural selection.
天然突变——演化过程中在分子的层次上主要是经由随机的基因流而决定，并非借由天择所影响。
Myles Axton, the editor of the journal that is publishing the report, said he was not persuaded by the argument that the dry earwax gene had been favored by natural selection.
刊登这份报告的期刊编辑MylesAxton说他并不认为干态耳垢基因是自然选择的结果。
We can do it because our brains (admittedly given to us by natural selection for reasons of short-term Darwinian gain) are big enough to see into the future and plot long-term consequences.
我们能够做到是因为我们的大脑(毫无疑问，自然选择的短期达尔文利益导致了我们的大脑的产生)发达到能够看到未来并能谋划长远的结果。
These functions are then evaluated by natural selection: if they succeed in maintaining a self, then the self continues to exist; if they fail to maintain a self, then the self disintegrates.
然后通过自然选择，对这些功能进行评估：如果他们能够成功地保持自我，那么那个“自我”就能继续存在，如果他们不能保持住“自我”，那么，那个“自我”就烟消云散了。适者生存是也。
The diversification of floral traits is the outcome of evolution by natural selection, and the variation in floral traits between species has a certain correlation with the plant habitats.
植物花性状的多样化是植物长期进化及自然选择的结果， 不同植物种间花性状的变异与生境存在一定的相关性。
Most variation in the human genome is neutral, meaning that it arose not by natural selection but by processes like harmless mutations and the random shuffling of the genome between generations.
人类的大多数变异基因都是中性的，这意味着变异之所以被激发不是出于自然选择，而是由于产生了良性变异或染色体在复制时候发生了混乱。
This accepts most of modern physical science including the age of the Earth, but rejects much of modern biology or looks to it for evidence that evolution by natural selection is incorrect.
这个认可大多数现代物理科学包括地球时代，但是拒绝许多现代生物或其关联的不正确的自然选择进化证据。
If we were truly a result of evolution by process of natural selection, this value on human life seems as though it has no source.
如果我们真的是通过自然选择的过程进化出来的结果，那么人类生命的价值看起来是不能追溯到源头的。
Much is the scribbling of vandals who have broken in and scrawled, “We woz ’ere”, in the barbarian tongue of viruses, not yet erased by nature’s librarian, natural selection.
大部分是闯入的病毒随意的涂鸦，用野蛮的腔调书写的“我们到此一游”。 它们还没有被大自然的图书管理员——自然选择抹去。
For that to be a problem, it would have to be the case that the modified fish were better at surviving and reproducing than those honed by millions of years of natural selection.
这类顾忌要成为一个问题，其前提必须是：经基因改造的鱼其生存和繁殖能力要比那些经过数百万年的自然选择挑选出来鱼更高。
Natural selection favored those who stayed together long enough to raise children: the men and women who could sustain a relationship by keeping their partners happy.
自然选择偏爱那些能够长久厮守并抚育孩子的人，即那些通过使对方感到快乐来维持关系的男男女女。
Names based on a natural language can suggest meanings by appropriate selection of words, but numeric values do not.
通过合理选择单词，基于自然语言的名称能暗示其含义，但数值不能。
Natural selection hits on a good design. That design is then adopted in slightly different forms by species after species.
当自然选择挑中了一个理想的设计后，一个接一个的物种便以略微不同的形式采纳这种设计。
Natural selection hits on a good design. That design is then adopted in slightly different forms by species after species.
当自然选择挑中了一个理想的设计后，一个接一个的物种便以略微不同的形式采纳这种设计。
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