river dolphin: Quick Facts

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An illustration of a Ganges River dolphin (Platanista gangetica) showing its elongated snout and flippers, with a faint scuba diver silhouette below for size comparison. Measurement bars indicate the dolphin is about 2.5 meters (8.2 feet) long.

Map of northern South America showing the distribution ranges of three river dolphin species. The Amazon River dolphin range is shaded green, covering much of the Amazon basin across Brazil, Peru, Ecuador, and Colombia. The Orinoco River dolphin range is shown in yellow, limited to the Orinoco basin in Venezuela and Colombia. The Bolivian river dolphin range is marked in purple within central Bolivia. The Araguaian boto's range is shown in orange along the Araguaia and Tocantins rivers in Brazil

A pink Amazon river dolphin, Inia geoffrensis, partially submerged in murky water, showing its elongated snout and rounded forehead.

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