Onager (weapon) Onager (weapon) The onager (British /ˈɒnədʒə/, /ˈɒnəɡə/, U.S. /ˈɑnədʒər/) was an imperial-era Roman torsion powered siege engine; in other words, a small catapult. The onager was first mentioned in 353 AD by Ammianus Marcellinus, who described onagers as the same as a scorpion. According to two authors of the later Roman Empire who wrote on military affairs, the onager derived its name from the kicking action of the machine that threw stones into the air, as did the hooves of the wild ass, the onager, which was native to the eastern part of the empire. The onager consisted of a
Animal Sentience (journal) an article asserting that fish feel pain. All articles accepted for publication are open to Open Peer Commentary in which multiple researchers may submit mini-articles criticizing, clarifying, or elaborating on the article from the viewpoint of any research field relevant to its content. The journal is an Open Access journal that charges no fees: neither publication fees to authors nor subscription, license or other access fees to users. Animal Sentience (journal) Animal Sentience: An Interdisciplinary Journal on Animal Feeling is a multidisciplinary academic journal. Its subject matter, animal sentience, concerns what animals think and feel, and the journal also covers