[08-03-2012 to 31-12-2012]
How You Doin': Dolphins Use Whistles to Say Hello
What does a dolphin say when it crosses oceanic paths with other dolphins? Hello, of course, followed by a formal introduction that’s relayed through a high-pitched “signature whistle.” Marine biologists from the University of St. Andrews in Scotland have long been studying dolphin’s cacophonous communication style — including a series of clicks, pulses and whistles — while the animal is in captivity. But until recently, they questioned how the signature whistles were used in the wild.
Now, they have an answer. The researchers used underwater microphones to follow pods of bottlenose dolphins in St. Andrews Bay. After weeding out some of the other sounds the animals make, they were able to determine that dolphins utilize their “signature whistles” when meeting up with other pods of dolphins — much like a catchphrase. Think, “Hey, how’s it going?” but in whistle form.
“It’s not just ‘I’m so-and-so,’ but the other information also in that whistle is, ‘I’m so-and-so, and I’m interested in making contact in a friendly way, I’m not attacking,’” Vincent Janik, one of the study’s researchers. “What I found really rewarding is to be out there and see how they communicate amongst themselves,” Janik said. “These are wild groups that are just doing whatever they’re doing. It’s really the first time that we can pinpoint down two individual groups and how they interact in a vocal domain, which is really cool.”
see here for further details
contact: Prof Vincent Janik