natural selection例句
the theory of
natural selection, first propounded by Charles Darwin
查尔斯∙达尔文首先提出的物竞天择理论
Natural selection ensures only the fittest survive to pass their genes on to the next generation.
自然选择确保只有最适应环境的物种得以存活下来，把基因传给下一代。
All base their arguments on the same tenets of
natural selection.
上述三种论点的依据都是自然选择理论.