If these species are not defined by interfertility, which obviously they are not, are they real, or just the convenient conventions of taxonomists?

如果这些物种并不是互交可孕的，显然它们不是的，那么它们真的或仅仅是分类学者们便利的惯例吗？

youdao

If these species are not defined by interfertility, which obviously they are not, are they real, or just the convenient conventions of taxonomists?

如果这些物种并不是互交可孕的，显然它们不是的，那么它们真的或仅仅是分类学者们便利的惯例吗？

youdao