The beak of a goose, as I may add, might also be converted by small changes into one provided with prominent, recurved teeth, like those of the Merganser (a member of the same family), serving for the widely different purpose of securing live fish.
Gehi nezake antzarraren mokoa, aldaketa txikika, beste helburu arras ezberdin baterako, arrain biziak harrapatzeko alegia, balio duten Merganser-arenak (familia bereko espezie bat) bezalako hortz irten makurrez hornituriko moko bilaka zitekeela.