Originally Posted by ///eP
actually, it is possible, saw the same thing on the show mythbusters, they trained gold fish aswell, pretty cool stuff.
yup.. I used to have an elephant nose (relative of the dolphin) in my aquarium, after a few months he was trained to come to the tank when I call him by name, anyone else's voice and he wouldn't respond. Was also trained to play with a pingpong ball, and to stop when told. Pretty impressive for a little guy. He didn't do any type of coordination like those fish though, which it looks like are just trying to school.