跟著學習了，剛去查了一下字典，嗯，你不說

我就沒真正意識到這兩個詞的不同。

其實哪怕就是基因， 基因變異和基因突變才是生物進化的途徑: 下麵兩句都是引用：

The crucial driver of evolution, Darwin understood, was not nature's sense of purpose, but her sense of humor.

Freaks become norms, and norms become extinct. Monster by monster, evolution advanced” 
― Siddhartha Mukherjee, The Gene: An Intimate History