How The Ocean Works on Instagram: "Often called one of the Amazon’s most distinctive animals, the pink dolphin is a freshwater species found throughout the Amazon and Orinoco river systems. Its unusual pink coloration becomes more pronounced with age, influenced by blood flow near the skin and marks from social interactions. Unlike their ocean-dwelling relatives, pink dolphins have flexible necks, elongated snouts, and broad flippers that help them maneuver through flooded forests and tight rive