研究者说，这反映了对配偶选择起作用的一个进化因素。
This, the researchers say, suggests an evolutionary component is at work for mate selection.
该艺术观认为人类天生就是审美的和艺术性的动物，艺术是人性中的生物学进化因素。
Dissanayake holds that human beings are creatures born with aesthetic and artistic orientation and art is an evolutionary factor in human nature.
但最新科学研究则把研究重点放在有多少生存空间可以利用方面，而不是此前以为的关键进化因素——物种竞争。
But new research identifies the availability of "living space", rather than competition, as being of key importance for evolution.
应用推荐