Talk:Spinosaurus/@comment-50.134.242.227-20130608204318/@comment-10943908-20130721164943

DISCOVERED, yes, but it is widely assumed that Mapusaurus grew to much larger sizes. However, after further thought, I agree that Spinosaurus may not have eaten fish at all. Here are my reasons:

1. The large bony spikes protruding from Spinosaurus' back were most likely joined together to form a sail, which was most likely used to cool down the body. However, if Spinosaurus was in water for the entire day, or even parts of the day, then why would it need a sail to help cool down? Even in a forest, there should be enough shade to keep its body temperature at a sustainable rate, and so the sail would a waste, something that is just un-needed (unless for courtship, which is quite possible). This evidence leads me to believe that it lived in a desert environment, in which there was very little to no water.

2. This may lead you to ask "What did it eat?" and I believe it could have eaten smaller animals, such as lizards, snakes and maybe small dinosaurs, as the delicate sail and bones may have prevented it from engaging in combat with large herbivores/carnivores.

Although this theory could be disproven (Some other reasons for the sail could be courthsip, migration (from one river/lake to another) which caused the conditions above, or even intimidation and distraction), until disproven, it may lead me to believe that Spinosaurus was not solely a marine mangeur (french).