Wiping Out the Dinosaurs Let Countless Flowers Bloom

When a mountain-size slab of space rock rammed into the Yucatán Peninsula 66 million years ago, the fallout was apocalyptic. Tsunamis washed away coastlines, raging fires engulfed forests and dust and debris blotted out the sun for months. Roughly three-fourths of the planet’s species, most notably non-avian dinosaurs, were wiped out. But one group appears…

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