Hyderabad: The Irrawaddy river dolphin (Orcaella brevirostris), not described as a separate species until 2005, were once found throughout the Mekong from the Lao-Cambodia border down the Mekong to the delta in Vietnam and Tonle Sap. The population and range of dolphins have declined greatly in the last 39 years. Less than 300 freshwater Irrawaddy […]
