Let me preface by saying this, if a human were to morph into a dolphin or some other aquatic species and got trapped, we wouldnt really know it possesed the same intelligence as humans, right? Because, under water and especially without hands and arms there is not really anything you can do, to show signs of intelligence other than the stuff we already see dolphins do?
Or lets say you put a newborn human brain in an aquatic body, and let it mature in that environment, without prior human experiences, would it posses more intelligence than a dolphin, if we were to do some kind of intelligence testing between the two?
With that context, how do we know that Orcas and Dolphins are not MORE intelligent than humans? I mean as i said, there is just that much you can do, to show your intelligence under water without the ability to use your arms and hands to create technology?
What would a dolphin be able to do, if we were to give it arms and hands?
(Im speaking intelligence in terms of the average humans, not some 200iq chad)