If so, it will hardly be denied that the points might have been converted through variation and natural selection into lamellae as well-developed as those of the Egyptian goose, in which case they would have been used both for seizing objects and for sifting the water; then into lamellae like those of the domestic duck; and so onward, until they became as well constructed as those of the shoveller, in which case they would have served exclusively as a sifting apparatus.
Hau horrela izanez gero, nekez ukatuko da puntak, aldakuntza eta hautespen naturalaren bidez, Egiptoko antzarrarenak bezain ongi garaturiko xaflatxo bilaka zitezkeela, kasu honetan bai gauzak atzemateko eta bai ura bahetzeko erabiliko zirelarik; gero, etxe-ahatearenak bezalako xaflatxo bilaka zitezkeen eta, azkenerako, ahate bahetzailearenak bezain ongi eraikiak izatera heldu, kasu honetan bahetzeko tresnatzat soilik balioko zutelarik.