CNN New Day Sunday July 28, 2013 10:48:00
Sothy noises or squeaks or squawking that a dolphins makes, yeah, it comes out of the blow hole on top of their head. if you take a balloon and you blow it up, and you pull the nozzle, you can make squeaks and squawks. that's exactly how it works. so the balloon is like their lung, and as the air is forced through their lung, they can make certain noises. >> reporter: so while they may not be using their mouths to communicate, it does seem that the lines of communication are open under assess. chad myers, cnn, atlanta. >> what a cool story. chad, thank you for that. appreciate it. make sure yo...