Keel (bird anatomy) 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 bird's wing muscles attach, thereby providing adequate leverage for flight. Keels do not exist on all birds; in particular, some flightless birds lack a keel structure. Historically, the presence or absence of a pronounced keel structure was used as a broad classification of birds into two orders: Carinatae (from "carina", "keel"), having a pronounced
This Is What the Truth Feels Like listed it at number 18 out of the year's 20 best and wrote, "Stefani has never sounded more vulnerable than she does on "This Is What the Truth Feels Like", a vivid assortment of urgent, top 40 goods". Notes Credits adapted from the liner notes of the international deluxe edition of "This Is What the Truth Feels Like". Musicians Technical Artwork This Is What the Truth Feels Like This Is What the Truth Feels Like is the third studio album by American singer Gwen Stefani. It was released on March 18, 2016, by Interscope Records. Initially, the album was scheduled