MOB Posted April 14, 2018 Share Posted April 14, 2018 The Silurian Hypothesis, the Seuss Effect, Eocene Layers of Mysterious Origin...it all adds up to #nightmarefuel https://www.theatlantic.com/science/archive/2018/04/are-we-earths-only-civilization/557180/ 2 Quote Link to comment Share on other sites More sharing options...
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