Discussing the scarfskins from the point of evolution, it implied that red Chinese crucian is more evolutional than Chinese crucian, fish without scales than fish with scales, Amphibia than Pisces (fish),and tiger frog than pond green frog.

• 从进化的角度来看,认为红鲫较鲫鱼进化,无鳞鱼较有鳞鱼进化,两栖类较鱼类进化,虎纹蛙较黑斑蛙进化。