Sakéwanten, yéning pamargin seleksi tnénten nungkalik antuk pamargi sekadi puniki, sifat-sifat sané ilang duk riin minabang nénten maevolusi mawali ring wentuk sané identik (cingakin ring hukum Dollo).
However, even if the direction of selection does reverse in this way, traits that were lost in the past may not re-evolve in an identical form (see Dollo's law).