8:41Earth Has Died 5 Times Before: Are We Living Through the 6th? #MassExtinction #EarthHistory
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Five times in the last 450 million years, the fossil record went abruptly silent. From oceans starved of oxygen to volcanic infernos that wiped out 96% of all living species, Earth has repeatedly rewritten the rules of survival. But the asteroid that ended the dinosaurs was the exception, not the rule. The real planetary killer has almost always been rapid shifts in climate and atmospheric carbon.













