Spinosaurus, the "Spine Lizard," is  the subject of a heated debate in  the scientific community. One thing that is not debated, though, is the sheer size of the monstrosity - with a length of over fifteen meters and a sail height of over one and a half meters, Spinosaurus was quite  possibly the biggest terrestrial carnivore to ever live. Prior to  2014, Spinosaurus was thought to  have a fairly normal theropod body,  with its body resting on top of long legs. However, a 2014 study claimed that Spinosaurus had short hind legs and walked on all fours. This quad- rupedal model set the paleontology  world reeling. While some people  accept this model, most are not  ready to accept such a drastic  revision based on the fossils and  simply reconstruct it with shorter  legs and a longer torso.   Despite the controversy over its  anatomy, there is still much that  scientists agree on. Spinosaurus  lived during the Cretaceous Period  in what is now Northern Africa. Its environment was very wet, and it  spent a great deal of time in the  water. A proficient hunter,  Spinosaurus posed a huge threat to  every creature that dared to near  it. Its dangerous jaws, over a meter long, could handle all manners of  prey. It also was likely very  opportunistic, never passing up the  chance for an easy catch or  scavenged carcass.