Pink Dolphins Are Real—and Disappearing From Hong Kong | National Geographic

Pink dolphins in Hong Kong’s harbor? Yes. Chinese white dolphins to be exact—though they’re known for their pink color, derived from a network of blood vessels close to the surface of their skin. Conservationists warn that the dolphins are at risk of vanishing from Hong Kong waters, with the local population declining by more than half over the past decade, to around 60 individuals today. The decline of these appealing marine mammals is largely attributed to water pollution and the habitat loss that has come with expanded development in and along the harbor.