The team of the Harbour Porpoise Group of the German Oceanographic Museum in Stralsund showed five self-explanatory posters in the OZEANEUM with the following themes: Biology of the harbour porpoise, geographical distribution of the porpoise family, food of the harbour porpoise, echo-location and risks for the Baltic harbour porpoise. In addition to this the visitors had the opportunity to watch the documentary: “Small whale in great need” in one of the video corners. At the cash desk of the OZEANEUM the staff pointed out that the visitors could find this special exhibition and handed out some information flyers about the endangered small cetaceans to them.