查询词典 natural selection

In the space of all possible computation and learning, then, natural selection holds a special position. It occupies the extreme point where information transfer is minimized.

因此，在所有可能的计算和学习的空间中，自然选择占居了一个特殊的位置，它占领了信息传递最小化的极值点。

"I think biologists could tell you this has something to do with natural selection — the person who acquires power becomes the alpha male," said Tom Fiedler, who teaches a course in press and politics at Harvard 's Kennedy School.

"生物学家会说这种现象跟自然选择有关。权力在握的男性成为物种优化的最佳选择，"哈佛大学肯尼迪学院的汤姆费德勒如是说。他在肯尼迪学院开了一门课，讲授媒体与政治的关系。

Darwin's study of finches from the Galapagos Islands helped lead him to the theory of evolution through natural selection

达尔文雀的研究从加拉帕戈斯群岛帮助带领他的自然选择进化理论

Johannsen became interested in the Theory of Heredity, a work by the British anthropologist Sir Francis Galton, which stated that natural selection does not work on the offspring of self-fertillizing plants.

约翰逊对遗传学说的兴趣，始于英国人类学家高尔顿爵士的一个研究，即自然选择学说不适用于自体受精植物。

Darwin discussed about some anomalous forms in fresh water basins, which belong to the remnants of some interesting orders. Because these anomalous forms exhibit the anomaly of geographical distribution e.g. Ganoid fishes, or morphological anomaly such as Ornithorhynchus and Lepidosiren , they may be called living fossils. It is believed that Darwin presented the facts of the above anomalous forms, and used the term "living fossil" in order to further illustrate the subject of "Circumstances Favorable for the Production of New Forms Through Natural Selection" in Chapter IV. The term "living fossil" appears on page 486 again in the last Chapter, i.e. Chapter XIV "Recapitulation and Conclusion", where Darwin emphasized the significance of so-called "living fossils".

第一次在该书第四章"自然选择"（第107页）：为了在该章深刻阐述"通过自然选择产生生物新类型的有利条件"这一主题，达尔文谈到了淡水流域中残存着地理分布或形态上很异常的一些生物，如：硬鳞鱼、鸭嘴兽和美洲肺鱼，可以称之为"活化石"；第二次是在该书最后一章"复述与结论"（第486页），达尔文对"活化石"的作用进行了小结。

Haldane established that natural selection could work in the real world at a faster rate than even Fisher had assumed.

霍尔丹使人们接受这样一个概念，自然选择可以在现实世界中以比费希尔假定更快的速度起作用。

Haldane applied mathematical analysis to real world examples of natural selection such as the evolution of industrial melanism in peppered moths.

霍尔丹发表了一系列的论文，将数学分析应用到真实世界的自然选择例子，如椒粉蛾工业黑变病的进化。

If the variations that affect reproduction are heritable , the outcome is evolution by natural selection.

如果影响繁衍的变异是可遗传的，自然选择的结果就是进化。

What natural selection does is change the relative frequencies of alternative phenotypes, insofar as they are heritable.

自然选择的作用是在可遗传的表型范围内，改变可供选择的替代表型的相对频率。

The natural selection would save the individual who could transfer his own genes or same genes to offspring during the heterogenesis.

道金斯的自私基因理论在基因层次上进一步揭示了亲缘利他行为的进化机制。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。