Let's assume that the _Carnotaurus sastrei_ has had his horns nothing more than an exhibitional add to its head. And that his arms have had some purpose. What could it be, if they're so small, theorically weak, and did not reach much longer thatn a few inches from it's body? And, if the "use or non-use" (sounds like Lamarck...) of the arms for anything makes them bigger and stronger, or smaller and weak, why did , assuming the following theories, the _Tyrannosaurus rex_ and _Spinosaurus aegypticus_ have had so big "arm differences" if both used only their mouth to eat: _T. rex_ because of his small arms, and _S. aegypticus_ because he caches fishes with his mouth (or feed on dinosaur corpses, like _T rex_ may did too)?
Somehow, I think that _Carnotaurus sastrei_ did not needed that much of his arms than his legs, but that means he could be, in a possible future, evolved into a dinosaur which arms had disappeared, according to some affirmations. Am I wrong?
DINOWEB BRASIL: http://www.geocities.com/CapeCanaveral/Campus/7472/index.html
"Dinosaurs are the most interesting and amazing mystery of nature!"