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 take the names as divisible. In regions where fortune-telling is more popular, many parents may name their children on the advice of literomancers. The advice are often given based on the number of strokes of the names or the perceived elemental value of the characters in relation to the child's birth time and personal elemental value; rarely on the sound of the name as there is no system of fortune-telling based on character pronunciations. In jurisdictions where it is possible, people may also choose to change their legal given name, or their children's names, in order to improve their fortune.