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
Society for the Scientific Study of Psychopathy include: Society for the Scientific Study of Psychopathy The Society for the Scientific Study of Psychopathy (abbreviated SSSP) is an international learned society dedicated to promoting and advancing scientific research on the personality disorder psychopathy. It was established in 2005 and held its first meeting that year in Vancouver, British Columbia, Canada. Since then, the society has held biennial conferences to provide a venue for psychopathy researchers to present their most recent findings. As of 2009, the society had over 160 members, most of whom were from the United States. The current president of the SSSP is Adelle Forth. Previous