Because scientists have too much time on their hands!
http://abc.net.au/science/news/stories/s1473208.htm

On the contrary, this type of research may lead to communication with dolphins.

Wouldn't it be cool if dolphins were as intelligent as humans? Or at least children.

Has anyone read the Uplift series by David Brin?

According to "Hitchhiker's Guide to the Galaxy" humans are the third most intelligent animals on Earth. If you count out the pandimensional beings in the form of mice, then we're the second most intelligent species. Dolphins being the first.

"It is an important and popular fact that things are not always what they seem. For instance, on the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much - the wheel, New York, wars and so on - whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man - for precisely the same reasons." - the Hitchhiker's Guide To The Galaxy

(Q):
So I wasn't being serious - but come on, the theme from Batman?

Well, its a start. But I get the feeling the dolphins will soon be swimming around trying to figure out how to get that damn tune out of their heads. ;)

http://www.orionsarm.com/clades/Enhanced_Dolphins.html

They don't have an mp3, wav, or whatever file. How do we know they aren't just making this shit up?

Now if only we can figure out the dolphin word for 'fish', interspecies communication will be in the bag.

Now if only we can figure out the dolphin word for 'fish', interspecies communication will be in the bag.

They probably have a hundred or more words for fish. ;)