1. Thus, naturalselection stabilized this host-parasite relationship.
因此，自然选择让这种寄主-寄生关系变得稳定。
来自互联网
2. Only the individuals of a species are subject to the pressures of naturalselection.
只有一个物种的个体感受到自然选择的压力。
来自互联网
3. Naturalselection favors the parasites that are best able to find and feed on hosts.
自然选择偏爱那些最容易找到寄主并以之为食的寄生虫。
来自互联网
4. "It seemed like the perfect chance for naturalselection to act on a population," said Dr. Ilardo.
“这似乎是自然选择在一个群体中发挥作用的完美机会。”伊拉尔多博士说。
来自互联网
5. The answer we'll propose of course is that their behavior is largely a matter of naturalselection.
我们给出的答案当然是它们的行为大部分是自然选择的结果。
来自互联网
6. At times, it is actually possible to watch the effects of naturalselection in host-parasite relationships.
有时，在宿主-寄生虫关系中观察自然选择的影响实际上是可能的。
来自互联网
7. Thanks to naturalselection, most species that have ever lived has already gone extinct, so this is not a new phenomenon.
由于自然选择，大多数曾经存在过的物种已经灭绝，所以这不是一个新现象。
来自互联网
8. Charles Darwin, the first to describe the role of naturalselection in speciation, wrote about the mechanisms of speciation.
查尔斯·达尔文是第一个描述自然选择在物种形成中的作用的人，他描写了物种形成的机制。
来自互联网
9. According to the first of these theories, each individual has evolved, aided by naturalselection, 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。
来自互联网
10. According to the first of these theories, each individual have evolved, aided by naturalselection, 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。
来自互联网
11. Once naturalselection had shaped the adaptations that helped plants overcome the obstacles to terrestrial living, plants prospered and diversified.
一旦自然选择塑造了植物的适应机制，使之克服在陆地生活的障碍，植物物种就生机勃勃且丰富多样了。
来自互联网
12. As Charles Darwin observed, naturalselection operates whenever individuals of one genetic composition are better at reproducing than that of others.
13. Meanwhile, the deadliest strains of the virus perished with their hosts as naturalselection favored strains that could infect hosts but not kill them.
14. The result, once naturalselection had done its work over the course of millions of years, was the now familiar cast of Allosaurus and Tyrannosaurus rex.
结果，历经数百万年间的自然选择，形成了我们今日熟知的异特龙和雷克斯霸王龙族群。
来自互联网
15. A recent paper, titled "The NaturalSelection of Bad Science", published on the Royal Society's open science website, attempts to answer this intriguing and important question.
16. Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, naturalselection has favoured bats that make a go of the night-hunting trade.
17. The grand mediocrity of today—everyone being the same in survival and number of offspring—means that naturalselection has lost 80% of its power in upper-middle-class India compared to the tribes.
