A team from the Federal University of Amazonas recently announced the discovery a new species of pink river dolphin in Brazil’s Araguaia River, Inia araguaiaensis, which they have already put on the endangered list as its numbers are estimated to be only around 1000.
River dolphins are extremely rare—with only seven known species in existence, and all are endangered, vulnerable or threatened. Near to this new species are the boto pink dolphins that thrive in the Amazon River. Scientists believe that the Araguaia rivet dolphin broke away from this distant cousin some 2.08 million years ago. Two species of river dolphin are regularly viewable in the Peruvian Amazon and guests of Aqua Expeditions always have the chance of seeing them playing in the river.
See more about the new discovery here: