T-Rex: All right! Who here wants to discuss...

T-Rex: ...THEIR AGING BODIES??

T-Rex: Wooo! Let's all sound off about how our bodies are changing, in every way objectively for the worse, as they get older! Who wants to go first?
Dromiceiomimus: ...
T-Rex: ...
Dromiceiomimus: ...
T-Rex: ...I'll go first!!

T-Rex: My feet hurt when I walk which is strange because THAT'S THEIR ONLY JOB AND THEY SUCK AT IT NOW??
Utahraptor: Hah! Wow!

Utahraptor: As an ageless immortal - better conceptualized as a universal constant slumming it in mortal flesh for a while before I return to my higher plane than as anything that could be compared to your small, limited forms - I can't really relate to this, but it sounds sucky!

Off panel: Also, in this limited form I have temporarily assumed, sometimes my back hurts for no reason.
T-Rex: Oh my gosh, RIGHT??