Wouldn’t that still mean that we are superior? We are capable of understanding and exchanging between each other complex ideas which animals cannot do using their basic language . Sure they can do some impressive tasks, but is it really equal to the human mind which can innovate and invent using experiences of those who came before to build something new. As for the studies I will be honest and say that I have heard of them before but wasn’t 100% sure if they were true or real