KnowraRiver dolphinLinked fromLinked fromThe 5 pages that link to River dolphin, each with the reason it gives.All 5Broader topic 2Narrower topic 1Compared with 2Toothed whaleBroader topic: River dolphins show that toothed whales inhabit freshwater as well as oceans.Amazon river dolphinNarrower topic: The Amazon river dolphin belongs to this ecological group.OdontocetiBroader topic: They show that odontocete lineages include freshwater specialists.Oceanic dolphinCompared with: River dolphins are not members of Delphinidae despite sharing the word dolphin.Risso’s dolphinCompared with: Risso’s dolphin is an oceanic species, not a river-adapted dolphin.