The video shows a close-up of a stamp collection sheet depicting dolphins and the words "GOLFINHOS EM VIAS DE EXTINÇÃO," which translates to "Dolphins in danger of extinction." The sheet features various illustrations of dolphins in their natural habitat, both above and below water. A stamp in the upper left corner of the sheet shows two dolphins jumping out of the water, along with the text "Cephalorhynchus hectorti maui MOÇAMBIQUE" and the denomination "175.00 MT". The top right corner has a dolphin partially submerged with the label "Tursiops truncatus ponticus." The lower half of the sheet displays an underwater scene with a dolphin, labeled "Platanista gangetica," and tropical plants. The background of the sheet features a repeating blue and white geometric pattern.