Physiology of dinosaurs and that this was a feature they shared with birds. In 2007 Oliver Wings reviewed references to gastroliths in scientific literature and found considerable confusion, starting with the lack of an agreed and objective definition of "gastrolith". He found that swallowed hard stones or grit can assist digestion in birds that mainly feed on grain but may not be essential—and that birds that eat insects in summer and grain in winter usually get rid of the stones and grit in summer. Gastroliths have often been described as important for sauropod dinosaurs, whose diet of vegetation required very thorough digestion, but
Chinese given name given name as a single word with no space between the letters of the two characters: for example, the common name 王秀英 is properly rendered either with its tone marks as Wáng Xiùyīng or without as Wang Xiuying, but should not be written as Wang Xiu Ying, Wang XiuYing, Wangxiuying, &c. The earlier Wade-Giles system accomplished the same effect by hyphenating the given name between the characters: for example, the same name would be written as Wang Hsiù-Yīng. However, many Chinese do not follow these rules, romanizing their names with a space between each. This can cause non–Chinese-speakers to incorrectly