Why did the dinosaurs go extinct? 40 years ago this was a big mystery. And it required several discoveries in different disciplines - geology, paleontology, physics, chemistry - to solve it.
This documentary pictures how scientists found out what killed the dinosaurs:
www.youtube.com/watch?v=tRPu5u_Pizk
This documentary pictures how scientists found out what killed the dinosaurs:
www.youtube.com/watch?v=tRPu5u_Pizk