Dear Jack:
Back to googling: “Porpoises range in size from the 1.4 metres (4.6 ft) and 54 kilograms (119 lb) Vaquita, the smallest cetacean to be discovered, to the 2.3 metres (7.5 ft) and 220 kilograms (490 lb) Dall’s porpoise.” I have no input on porpoises but wanted to acknowledge your thread and your humor which I find … humorous. Porpoise, that is purpose, funny, jack, funny I say.
anita