Birds being of all animals most particularly adapted for extended and rapid locomotion, it became necessary for him to eliminate from his consideration those groups, be they small or large, which are of more or less universal occurrence, and to ground his results on what was at that time commonly kn
kn הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד