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:Apocalypse WARNING: Insect EXTINCTION could have serious threat to HUMAN survivalSpaceX launch schedule 2019 dates: Elon Musk firm to launch Falcon 9 NEXT WEEKSpaceX launch WATCH AGAIN: See Musk's Starman Tesla BLAST into space again - video HERECity skies to be dominated by FLYING TAXIES - researchers predict 23,000 by 2035A.I. Shows Promise as a Physician AssistantF.D.A. Warns Supplement Makers to Stop Touting Cures for Diseases Like Alzheimer’s