The Boto, Boutu, Amazon River Dolphin or Pink River Dolphin (Inia geoffrensis) is a freshwater river dolphin endemic to the Amazon River and Orinoco River systems. The largest of the river dolphins, this species isn't to be confused with the Tucuxi (Sotalia fluviatilis), whose range overlaps that of the Boto but isn't a true river dolphin. The IUCN lists various other names to describe this species including Amazon Dolphin, Boto Vermelho, Boto Cor-de-Rosa, Bouto, Bufeo, Dauphin de l'Amazone, In… (More on Boto)