On Porpoise

Would we still differentiate between dolphins and porpi if the porpi would do our little tricks in water parks?
It's the only aspect that seperates the two animals, really.
Human subordination.
Of course, the dolphins are doing it for the mackerel. Not the trainers.
Apparently they have different arrangements of teeth as well.
The porpi. Not the trainers.
Well, the trainers as well.
Did I leave the stove on...?

edit: 'Porpi' is not plural for porpoise. And they probably do perform our tricks in parks. Because who doesn't enjoy swallowing a mackerel or two from time to time?