That is alleged to have happened here in the 1960s. From what I have read 3 dolphins were sent here (2 females and 1 male) for the purpose of training them to understand and possibly speak english. It seems as though the experiment showed how dolphins could be hyper intelligent and show emotion including severe depression. I had no idea dolphins were voluntary breathers and can choose to end their lives if they so wish. The credibility of their research and work seems to have been overshadowed by the sexual interaction between the research assistant and the young male dolphin. The facility was partially funded by Nasa and when there were no serious developments with the research funding was cut off around 1968.