River Dolphin
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River dolphins are the four living species of dolphin that reside in freshwater rivers and estuaries. River dolphins inhabit areas of Asia and South America. They are classed in the Platanistoidea superfamily of cetaceans. Three species live in fresh water rivers. The fourth species, the La Plata dolphin, lives in saltwater estuaries and near-shore marine environments. However, it is scientifically classed in the river dolphin group rather than the oceanic dolphin family.
Read more about River Dolphin: Characteristics, Taxonomy, Differences Between Marine and River Dolphins, Extinction of The Baiji, In Literature, Non-river Dolphins in Riverine Environments
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