Spinosaurus

Instead of debating on who is bigger or who would win, Spino or Rex, I'm just gonna talk about Spinosaurus in general. Keep in mind, this is based on my research and opinions. Spino's average size= 46 feet long, 4 to 5 tons. Max. size= 56 feet long, 6.5 tons. Diet= fish, small dinosaurs, carrion. Then there's the iconic sail. I feel it was used to regulate body temp and was full of blood. However, Spino's sail was probably it's biggest inhibitor. It was stiff, so it would have been less agile. Being full of blood, if it was broken, it would be like a giant blood filled cookie. The worst thing that could happen though, is if Spino rolled over or fell on it's back. Those spines were directly attached to it's backbones. If it fell, it would break it's back and die. This is why I don't think Spino was designed to take on large prey and engage in heavy combat. Just my opinion.