But it is a far more important consideration, that during the process of further modification, by which two varieties are supposed to be converted and perfected into two distinct species, the two which exist in larger numbers, from inhabiting larger areas, will have a great advantage over the intermediate variety, which exists in smaller numbers in a narrow and intermediate zone.
Baina askoz gogoramen inportanteagoa da honako hau, alegia, bi aldaki bi espezie ezberdin bilakatzeraino hobetzeko behar den eraldatze prozesuaren barruan, eskualde zabalagoan bizi direlako ugariagoak diren biek abantaila handia izanen dutela, bitarteko lekune txikiagoan urriagoak diren aldakien parean.