Trilobites: The Prehistoric Puzzle of How Plesiosaurs Swam Through the Oceans As dinosaurs ruled the Earth, these Loch Ness monster-like creatures prowled the oceans with an unusual swimming technique, scientists believe. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Giant Ice Disk Spins in Maine RiverEclipse 2019 in North Carolina: When is lunar eclipse visible, time, how to watchKeep Your Crop Circles, Iowa: This Huge Ice Disk in a Maine River Is Churning Up TheoriesHere’s How the Shutdown Is Delaying Climate Data and Undercutting ScientistsTrilobites: When Fungi Fight BackSacklers Directed Efforts to Mislead Public About OxyContin, New Documents Indicate