Since the discovery of their fossils at the end of the 19th century, dinosaurs have sparked the imagination of people of all walks and aroused everybody’s curiosity, whether old or young, scientists or lay persons. How did they live and why did they suddenly disappear? How did they look like ? Even though we don’t know much about dinosaurs, about their colour or their skin, we are quite sure, thanks to their remains, about their shape and size. In fact, the study of their fossils made it also possible to know that Dinosaurs roamed the earth for around 180 Million years. They first appeared during the beginning of the Mezoic Era, approximately 240 million years ago, and were wiped out at the end of the same Era, approximately 75 million years ago. Even though the cause of their extinction has not been proven yet, some paleontologists think the extinction was triggered by an Asteroid hitting the Earth. Such a large collision would have thrown so much dust into the Atmosphere darkening the planet and causing dinosaurs and more than half of species extinction.
