Saw this earlier tonight: Fin massage relieves stress in surgeonfish
Another piece supporting the idea that social grooming provides stress relief, in vertebrates, from fish to humans. (Still not sure about reptiles.)
Further to a manual therapy theme, George Takei, who played Sulu on Star Trek, and who posts plenty of whimsey on Facebook, posted this picture. I do not know the original source.
It has manual therapy logo possibility. Rabbits are vertebrates. Humans are vertebrates. Vertebrates evolved social grooming. Manual therapy is human primate social grooming. I like the possibilities.