dinosaurs

Many predicted that dinosaurs became extinct around 65 million years ago. Till today, no one really knows the real reason of the extinction of dinosaurs but since then, there were many theories going around on the possible reasons of what stopped their species. The many theories people think are possible, but not back up with solid proof are due to asteroid, brain functions, catepillars, greenhouse gases, hitting asteroids, ozones, stress and supernova.

However, most scientists believe that it was due to the collision of asteroids sending dust and dirty water to the atmosphere that led to the end of bearing of dinosaurs.




reference: http://dsc.discovery.com/dinosaurs/prehistoric.html