What's Mallard raving about today?
Uh, Mallard, you understand that Tyrannosaurus was also a carnivore, right?
In terms of your metaphor here, if the Tyrannosaurus was "old" then, in the animal kingdom, death is a pretty likely fate. Also, can you think of any other words with the same root as "Tyrannosaurus" which mean this metaphor works better when read with the opposite intent as yours?
God, you really suck at your job.
BTW - I realize I am not in the segment of Mallard's readers which are reflexively reflexively frightened at the dog whistle metaphor of a "pack" of "carnivores."