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 Do You Got? also stated that "Jon's voice is crisp and clear, up in front in the mix; and Richie Sambora's guitar work is neat, clean, and growing more minimal by the minute". Describing the composition, Osrin said that song "continues the band's trend of recording music that tries to be more socially conscious than rollicking". Songwriting and production Musicians "What Do You Got?" was used in a promotional video for "Grey's Anatomy" in Canada. What Do You Got? "What Do You Got?" is a song by American rock band Bon Jovi. It is one of four songs written for the band's "Greatest