Keel (bird anatomy) keel; and ratites (from "ratis", "raft" — referring to the flatness of the sternum), having a subtle keel structure or lacking one entirely. However, this classification has fallen into disuse as evolutionary studies have shown that many flightless birds have evolved from flighted birds. The current definition of Carinatae now includes all extant birds. Keel (bird anatomy) A keel or carina (plural carinae) in bird anatomy is an extension of the sternum (breastbone) which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs. The keel provides an anchor to which a
What Is the What it would be first person or third, whether it would be fiction or nonfiction. After about eighteen months of struggle with it, we settled on a fictionalized autobiography, in Valentino’s voice." Eggers explains that this choice was made because "Valentino’s voice is so distinct and unforgettable that any other authorial voice would pale by comparison. Very early on, when the book was in a more straightforward authorial voice, I missed the voice I was hearing on the tapes. So writing in Val's voice solved both problems: I could disappear completely, and the reader would have the benefit of his very