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pre-human civilization

  1. A

    Dinosaur Civilisation

    Do you think there might have been a dinosaur civlisation, any proof of one? There have been some metal spheres that have been found by archaelogists as well as areas that are abnormally radioactive. Are there any dinosaurs that look like couild build a civilsation. (ones with some sort of...
  2. P

    Silurian Hypothesis: How To Detect Any Pre-Human Civilisation?

    I know all this stuff has been discussed before, but what if just some of it is true, is it possible that civilization existed millions of years ago and was destroyed by some catastrophe? EDIT: INTRODUCTION / OVERVIEW: The Silurian hypothesis is a thought experiment which assesses modern...
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