Roman siege engines BC, and surrounded by Roman fortifications. As was standard siege technique at the time, "ballistae" were placed up in the towers with other soldiers armed with either bows or slings. The onager was a post-classical Roman siege engine, which derived its name from the kicking action of the machine, similar to that of an onager (wild ass). It is a type of catapult that uses torsional pressure, generally from twisted rope, to store energy for the shot. The onager consisted of a frame placed on the ground to whose front end a vertical frame of solid timber was rigidly fixed;
I Am an Animal on the behalf of animals. He wanted to raise awareness and encourage animal rights activism. Ingrid Newkirk is the featured in "I am an Animal" film, and she plays the main role in the film because she is the cofounder and president of PETA. She is British-born, and it is said that her extreme ideas and actions have been the drive for PETA and what has allowed it to be successful. Newkirk has been a leader of PETA for about 25 years now. In the sole review on Rotten Tomatoes Harvey Karten of CompuServe notes that the film is a