River dolphins are scarcely known, and hardly seen by many humans. Fresh water dolphins live only in the Amazon River and parts of Asia including the Ganges, India’s sacred and longest river.
River dolphins are barometers of river health
Under enormous threat from commercial fishing and pollution, the river dolphins act as a barometer of river health in basins where they live. Along with sea turtles and sharks, these dolphins are some of the oldest creatures on earth.