txt.sour.is xkcd-com@feeds.twtxt.net "Extinction Mechanisms The Late Heavy Bombardment was followed a few billion years later by the Comparatively Light but Oddly Specific Bombardmen ..."

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Extinction Mechanisms
The Late Heavy Bombardment was followed a few billion years later by the Comparatively Light but Oddly Specific Bombardment. ⌘ Read more

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