The disappearance of the dinosaurs
About the disappearance of dinosaurs, there are several theories have been experienced.
The first of them says that dinosaurs disappeared from Earth’s collision with a large celestial body, according to the latest research it is believed that the asteroid collided with Earth near Mexico, where there is a huge crater with a diameter of 200 km. The impact of this asteroid is supposed to have resulted in a huge vapor cloud that blocked sunlight to heat and light soil in May. Without heat and light plants have not developed in time disappeared, which led to the disappearance of the dinosaurs, who have never had to eat.
But this theory can not explain why only dinosaurs disappeared and not existing at that time the other animals on Earth.
Dinosaurs were extinct before the impact of an asteroid and Earth, which is thought to have led to their extinction, it is the theory behind the research published by two experts – Professor David Penny of New Zealand’s University and doctoral Messy Matt Phillips from Oxford, United Kingdom. They say that birds and mammals began to exceed the number of dinosaurs from 20-30 million years, and their diversification began in 80-90 million years ago.