Dinosaurs like Tyrannosaurus have long been portrayed as lipless, but new research suggests this wasn’t so.
Tyrannosaurus rex, Prehistoric Planet Wiki
ティラノサウルスには「唇」があった可能性！そのメリットとは？ - ナゾロジー
T. rex pulverized bones with an incredible amount of force
T.Rex did NOT have permanently exposed teeth - and instead had scaly, lizard -like LIPS, study finds
It's time to let go of what we think T. rex should look like — Lady Science
Tyrannosaurus rex might be one species, not three, after all, dino t rex
Take a Look at the Skeleton of a Pregnant T-Rex Dinosaur Called, dino t rex
How to tell if a T. rex is expecting
T. Rex Had Lizard-like Lips That Covered Its Teeth - WSJ
How to tell if a T. rex is expecting
I found this on pinterest and I think it highlights the old argument of Tyrannosaurus Rex with lips vs without lips : r/Dinosaurs
T. rex may have had lips like a modern lizard's, dino t rex
