Yes that is what a dosumentary said...you probably watched Valley of the T.Rex on discovey channel. Now with the whole thighbone controversy....it is funny that they can base all that on a few skeletons...in fact juvinile Rexs had lond legs good for running at a resonable spead concidering the caring about a ton around with them...Also Rexs may hunt in packs we dont know this just like we dont know if they are hunters or scavengers....another documentary suggests that they hunted similar to that of a lion pack. Using a clever family system the juviniles would be the runners to chase the prey into the mothers or fathers large and deadly mouth. That was said in one documentary.
But it all comes down to this.....if you smelt or saw a whopper (burger king) lying around just made and ready to eat and you saw these younger kids there and they where going to grab it..and say you are hungry and havent eaten in awhile and the kids already had something big to eat you would go over there use your age and size to get it from them...some what scare them...just like you suggested....now say everything was healthy and strong and your a Rex..and your very hungry but nothinbg has died for days and miles weeks even im sure you would have a natural instinct to hunt.
My point is that there is no such thing as a strict Hunter or scavneger of that size and power
