Thirty species of cetaceans and three species of pinnipeds are found in Korea, and species have been designated as Endangered Marine Species, including the North Atlantic right whale (Eubalaena glacialis), gray whale (Eschrictius robustus), humpback whale (Megaptera novaeangliae), blue whale (Balaenoptera musculus), fin
whale (Balaenoptera physalus), sei whale (Balaenoptera borealis), Bryde’ whale (Balaenoptera edeni), sperm whale (Physeter microcephalus), Indo-Pacific bottlenose dolphin (Tursiops aduncus), spotted seal (Phoca largha), northern fur seal (Callorhinus ursinus), and steller sea lion (Eumetopias jubatus). Recently, the finless porpoise (Neophocaena phocaenoides), which is experiencing a drastic decrease in its numbers, has also been added to this list. The Indo- Pacific bottlenose dolphin, spotted seal, northern fur seal, and finless porpoise are still frequently observed in domestic waters.