We probably have to determine how intelligent they are in the first place, if it turns out they are smart and learn similar to how we do or to the extent we can that would be very interesting. If it turns out their smart but threw very different means that would be very interesting to. I mean if we can get one, find we are able to teach and eventually communicate with... Just studding that brain threw non invasive ways, alive and in thought will probably greatly excel our understanding of how and why a brains do what they do. Morally or even just the list of consequences of doing that brings up a lot of I'm not sure we should actually be doing such a thing.