I got that too now. I guess the people were tired of us all looking. For what it is worth, the cat kept rubbing its face over the dolphin muzzle and pawing at its face.
The dolphin was very cooperative and seemed to enjoy it.
-Dolphins have cone-shaped teeth while porpoises have flat or spade-shaped teeth.
-Dolphins usually have a pronounced "beak" while porpoises do not have a beak.
-Dolphins generally have a very curved or hooked dorsal fin, while porpoises have a triangular dorsal fin.
-Porpoises are generally smaller than dolphins.