I only skimmed the article coz I was a bit tipsy but I think it's about human/dolphin communication encounters?
Sounds similar to a bloke called Malcolm Brennar who was employed by a Marineland-esque place in California to photograph dolphins. he ended up "communicating" with one particular dolphin and ultimately f*cking her. Much stories online. He wrote a book about the whole thing called Wet Goddess which is mostly about his encounters with the dolphin with a splash (heehee) of secksual activity.
Sounds like he spent a lot of time tripping on acid though so who knows.
apparently he said he was doing missionary with the dolphin but got a bit bored and decided to flipper over.