7 Theories Explaining the Mysterious Extinction of Prehistoric Marine Reptiles
Imagine oceans so alive with giants that swimming through them would have felt like moving through a living nightmare. Over 230 million years ago, long-necked plesiosaurs and dolphin-shaped ichthyosaurs dominated the oceans, from open water to the shallow coasts. These creatures were not side characters in the story of prehistoric life. They were the main ...












