All quite down from us the descent is by easy steps, and a continued series of things, that in each remove differ very little one from the other. There are fishes that have wings, and are not strangers to the airy region:
Badira arrain hegaldunak, airea arrotz ez zaiena, eta uretan bizi diren txoriak, arrainak bezain odol hotzekoak, eta zaporea ere hain dute arrainaren antzekoa ezen eskrupulosoei zilegi zaiela bijili egunetan hura jatea.