T-Rex

Hi lulu,
It has been a long time since I played this game, but I think the solution to this riddle is to find the T-Rex, find what might be its "prey" (probably some sort of meat, or a bone?) and find an animal that is in between them.
If I am incorrect in this (as I said, it has been a long time), I hope someone else will pop in to give you the name of what you need.
I know there is a help or clue system in this game regarding the riddles, have you tried this?
Cheers