It has been argued that the immense size of Tyrannosaurus rex would have made it so slow that it could only have been a scavenger, not a hunter, since it would not have been able to chase down its prey  This, however, is an overly hasty inference  T  rex' s prey, if it was even larger than T rex, would probably have been slower than T  rex
The claim that T
It is offered as evidence that is necessary for drawing the conclusion advanced by the argument