This, perhaps, partly explains why the varieties kept by savages, as has been remarked by some authors, have more of the character of true species than the varieties kept in civilised countries.
Honexek esplikatzen du beharbada, aldez bederen, zergatik dituzten basatiek, zenbait autorek azpimarratu duen bezala, herri zibilizatuetakoak baino benetako espezieak izatetik hurbilago dauden aldakiak.