Trilobites: Where Did Animals With Tail Weapons Go? Here’s a Back Story Scientists have identified traits that may have been related to dinosaurs like stegosaurus and ankylosaurus and other animals developing fearsome rear-end weapons. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:HEALTH WARNING: Rising numbers of BRAIN-BURROWING PARASITE cases leave experts baffledOp-Docs: Gut HackLIFE ON MARS? Red Planet more like Earth than previously thoughtROBOTS ARE COMING: Britons wary AI machines will rise up and KILL usTrilobites: In Ancient Guano, a Record of Penguin DisasterCould this chewing gum SAVE YOUR LIFE? Scientists develop new gum to detect cancer