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After an asteroid wiped out the dinosaurs, ocean microbes helped life rebound

By Katherine Kornei 

Never underestimate pond scum. The asteroid impact that killed most of the dinosaurs 66 million years ago also created conditions for ocean microbes to flourish, according to a new study. In microscopic rock crystals, researchers have found evidence that massive blooms of algae and photosynthetic bacteria covered the world’s oceans, providing food for larger marine creatures soon after the cataclysm.

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algae bloom