Dinosaur Behavior Dinosaurs are presumed to be a family of endangered animals that breeded 16 million years ago when the Triassic of the late Mesozoic era started 230 million years ago. They are extinct for the past 65 million years and can not be studied in an actual sense, but scientists were able to deduce the various behaviors of the dinosaurs. This paper will demonstrate that it can provide in-depth research and testing of different types of body and trace fossils and animal models as evidence for estimating the behavior of different types of dinosaurs.
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In 2016, the number of dinosaur species present in the Mesozoic era was estimated to be 1,543-2,468. Some are herbivorous, some are carnivorous, including food eaters, fish eaters, carnivores and omnivores. Dinosaurs are wild bipedal walks (like all modern birds), but some prehistoric species are quadrupeds, while others such as Anchisaurus and Iguanodon have two or four You can walk easily with your feet. Modification of the skull such as corners and ankles is a characteristic of common dinosaurs, and some extinct species have bone armor. Large size is known, but many Mesozoic dinosaurs are human or small, and modern birds are usually small. Today 's dinosaurs live on every continent, and fossils indicate that they attained worldwide distribution at least during the early Jurassic period.
The discovery that birds are a type of dinosaur suggests that dinosaurs are not generally extinct as they are being told. However, it is estimated that the population of all dinosaurs and many birds other than 628 to 1078 birds suddenly disappeared about 66 million years ago. Because small mammals, scales, and birds occupy a niche suitable for smaller sizes, dinosaurs other than birds have never evolved various small animal communities and they are large terrestrial quadruped animals It is attacked by. At that time, the masses passed mass extinction cases. Many other animal groups, including ammonites (Nautilus mollusk), lizards, pliosiosaurus, pterosaurus, and many mammalian groups are also extinct at this time. It is noteworthy that these insects have no obvious population decline, which will be food for other survivors. This mass extinction is called the Cretaceous - Paleogene extinction event.