The evidence suggests that warblers use their extremely elaborate songs primarily to attract females, clearly confirming the effect of intersexual selection on the evolution of birdsong.

证据表明，莺主要用它们极其精致的歌声吸引雌性，这清楚地证实了雌雄间选择对鸟类鸣叫进化的影响。

youdao

The study’s findings may also help explain the Flynn effect, which can’t be accounted for by evolution (the IQ gains occur over time spans too short for natural selection).

该研究发现还可能对解释不能归因为进化（对于自然选择来说，获得IQ的时间跨度太短）的弗林效应有所帮助。

youdao

The study's findings may also help explain the Flynn effect, which can't be accounted for by evolution (the IQ gains occur over time spans too short for natural selection).

该研究发现还可能对解释不能归因为进化（对于自然选择来说，获得IQ的时间跨度太短）的弗林效应有所帮助。

youdao

There is, of course, the question of how much this matters, for most mutations have little effect and a rare few, the stuff of evolution, are actually beneficial.

ECONOMIST: Genetic damage and paternal age