a program to chat with dolphins using underwater whistles and that many people can use at the same time (e.g., as a decentralized p2p IM conference session) so that large groups of people can try to figure out in real-time the meanings, if any, in a live whistle exchange. The working prototype has a user guide at http://leafyseadragon.blogspot.com/ - the p2p components are not completed - the prototype is a standalone application (i.e., laptop).