The Economist -
10 Nov 2016 17:51

My, what sharp teeth you have HOW the dinosaurs died out after ruling the planet for over 150m years was a mystery that consumed palaeontologists throughout much of the 20th century. These days it is mostly accepted that they were done in by the climatic after-effects of the impact of a giant asteroid, specifically the one that carved a vast crater 180km across near the Yucatan Peninsula in Mexico. Now the focus has shifted from how they died out to where they came from in the first place. In a ...
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