It is of importance for our understanding of the position of the Ratitae in the system, that the wing-skeleton of the ostrich and rhea is an exact repetition of that of typical flying birds; the bones are much more slender, and the muscles are considerably reduced in strength also to a lesser extent
lesser extent הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד