Dinosaur mass of adults among these dinosaurs suggest that the eggs were primarily brooded by the male, and that the young were highly precocial, similar to many modern ground-dwelling birds. Some dinosaurs are known to have used gizzard stones like modern birds. These stones are swallowed by animals to aid digestion and break down food and hard fibers once they enter the stomach. When found in association with fossils, gizzard stones are called gastroliths. The discovery that birds are a type of dinosaur showed that dinosaurs in general are not, in fact, extinct as is commonly stated. However, all non-avian dinosaurs,
Russian given name dubbed "anthroponymic bang". According to Russian naming tradition in official speech people are addressed by their name followed by a patronymic. In official situations one's given name is always written or spoken in its legal form (name given at birth and documented in papers like birth certificate and passport). Prior to October Revolution canonical form was considered official. It was documented in baptismal register books. However, in birth certificate and other documents a secular form was used. Arising ambiguity was not considered important and didn't cause any legal consequences. In baptismal register books people bearing names Yuriy and Egor appeared