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
This Is What the Truth Feels Like It was the venue for her first live performance with her band No Doubt opening for Ziggy Marley in 1990. "This Is What the Truth Feels Like" received generally favorable reviews from contemporary music critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream publications, the album received an average score of 62, based on 16 reviews. Leah Greenblatt of "Entertainment Weekly" stated that Stefani's material "feels truer—and sounds stronger—than it has in years". Mikael Wood of the "Los Angeles Times" was very positive in his review, highlighting that "[h]er singing—and, more important, what her