Dinosaur

A recently popular theory that dinosaurs extinct, generally refers to pranigosthike large vertebrates. These prehistoric inhabitants of the earth's ecosystems, and scientists estimate about 16 million years the dominant creatures ruled the earth. An estimated 3 million years before the first dinosaurs evolved. At the end of the Cretaceous period, around 6 million years ago in a devastating natural disaster that wiped out the dinosaurs are from the Earth's influence. A class only the current period is expected to be able to survive: srenibinyasabidara theropod dinosaurs, a direct descendant of the concept of modern birds [1]; The evolution from the Jurassic era, the patterns obtained by fossil evidence [ii]. Hierarchical, morphological and ecological aspects of some of the different types of animals from the word dinosaur can be described as a common name. Unable to fly more than 500 dinosaur fossil evidence, paleontologists from the public [3], and more than 1,000 species have been identified [4]. Living and fossil species of dinosaurs, including all the continents can be found [5], there are examples of both Vegetarian and mansasi. Although utpattigatabhabe bipedal dinosaurs, but a lot of extinct species of animals found, and in some species reaching a time, if necessary, could use two legs or four legs. In all the dinosaur horn, bone and skin are a sign of leaf morphology, etc., displays, and some extinct species can be formed as a skeleton, bone armor and spines. One of the most common features, regardless of the category of dinosaurs laid eggs and home brewing practice. Some of the physiological requirements of flight for the sake of prehistoric dinosaurs to modern birds, but many smaller was immense. The largest sauropods dinosaurs 58 meters (190 feet) long and up to 925 meters (30 feet 4 inches) high was [6]. Dinosaurs still unable to fly as soon as the leads would be wrong to insinuate. Most large-scale fossil discovered is ekatha dainosara. This is because the nature of fossils, but the size of the adversities endured until calcification can survive easily. In fact, there were a lot of small dinosaurs; For example, jijiyanikasa (Xixianykus) the length of the dinosaur was only about 50 centimeters (about 0 inches). Although the 'dinosaurs', the term literally means terrible lizards, but are actually lizards or dinosaurs are not lizards. Rather, they belong to a separate group of reptiles class representative, the reptiles are largely separated from those physiological activities; For example, they were warm-blooded and capable of bipedal of way. That marked the first half of the twentieth century until the birds are dinosaurs, scientists believed dinosaurs were sluggish and cold-blooded. However, since the 1970s, and subsequent research has shown that most of the dinosaurs had a high metabolism rate, highly active animals, and they have been adapted in many ways to communicate with each other. The first fossil dinosaur was discovered in the early nineteenth century. Dinosaur skeletons remain trapped in rocks from the cliff or various museums in the world is to become the center of attraction. Dinosaurs has become an integral part of world culture. Some extinct dinosaur species, mostly large size and because of their potential violent behavior has become a topic of special interest to both children and adults. Best-selling book and film Jurassic Park, etc. There are plenty of dinosaurs seller is the cheapest and the discovery of new media, especially the broadcast.