Ornithothoraces Ornithothoraces Ornithothoraces is a group of avialans that includes all enantiornithes ("opposite birds") and the euornithes ("true birds"), which includes modern birds and their closest ancestors. The name Ornithothoraces means "bird thoraxes". This refers to the modern, highly advanced anatomy of the thorax that gave the ornithothoracines superior flight capability compared with more primitive avialans. This anatomy includes a large, keeled breastbone, elongated coracoids and a modified glenoid joint in the shoulder, and a semi-rigid rib cage. The earliest known members of the group are the enantiornitheans "Protopteryx fengningensis", "Eopengornis martini", and "Cruralispennia multidonta", as well as the euornithine "Archaeornithura
What a Difference a Day Makes (Grey's Anatomy) What a Difference a Day Makes (Grey's Anatomy) "What a Difference a Day Makes" is the twenty-second episode of the fifth season of the American television medical drama, "Grey's Anatomy" and the show's 100th episode overall. Written by series creator Shonda Rhimes and directed by Rob Corn, the episode was originally broadcast on the American Broadcasting Company (ABC) in the United States on May 7, 2009. "Grey's Anatomy" centers around a group of young doctors in training. In this episode, a wedding takes place. The episode received generally favorable reviews. The initial airing was viewed by 15.326 million people and