Dinosaurs
What really killed the dinosaurs?

What really killed the dinosaurs?

Earth's history has seen countless mass extinctions but the most talked about happened 65 million years ago during the late Cretaceous period, ending the reign of the dinosaurs. In fact, whatever caused the death of the dinosaurs also caused the death of around 70 per cent of all species on Earth. We look at some of the theories put forward.
 
 
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