Dinosaur Extinction

Throughout the course of the research a number of different theories have been evaluated to draw conclusions about the reason behind Tyrannosaurus · Rex's extinction. All discussions support reliable, educated information and data, but the most decisive theory is Alvarez asteroid crash theory. University of California researcher Alvarez found a thin layer of comet around the rocks of Gubbio, Italy. (New Scientist, 1) 铱 is an element in meteorite and asteroid.

The theory of dinosaur extinction develops mainly on the extinction of dinosaurs. According to a theory, at the end of the dinosaur era, the environmental change associated with the progressive withdrawal of the shallow ocean of the continent brought the dinosaur out of extinction. Supporters of the theory suggest that the number and type of dinosaurs will gradually decrease after millions of years. "Suddenly, it was a small pea, a beautiful blue, the earth that shocked me suddenly, I set my thumbs, closed my eyes, my thumb dirtied the earth, like I was a giant I do not feel I am Neil Armstrong said that this is his famous trip, he was the first man on the moon, one of several people with opportunity. Earth has always been the residence of mankind since.

I really do not know. What is the reason for confirming that the dinosaur is really extinct? It seems that everyone wants to know why dinosaurs are extinct. But the group of scientists seriously believe that not all the dinosaurs were extinct 65 million years ago. Of course, Triceratops and Tyrannosaurus disappeared. However, there is also much evidence that contemporary birds have evolved from carnivorous dinosaurs. If this is true, is it perfectly fair to say that the dinosaur has become extinct if the dinosaur has a living child? The latest news from scientific journals to volcanic eruptions is an important mechanism of mass extinction. A group of scientists discovered what happened in the Siberian territory where massive volcanic eruptions began in the Mesozoic era - the era of more extinct dinosaurs than the extinct dinosaurs of the late Mesozoic era - (Timro).