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A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale). Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
- Common Dolphin
The common dolphin belongs to the subfamily Delphininae,...
- River dolphin
River dolphins are a polyphyletic group of fully aquatic...
- Bottlenose dolphin
Bottlenose dolphins are toothed whales in the genus...
- Common Dolphin
Dolphins are from 1.5 metres (4.9 ft) to 4 metres (13 ft) long, but the largest dolphin, the killer whale (or orca), can be up to 8 metres (26 ft) long. All dolphins live in groups called "pods". They are social animals at all stages of their life.
The common dolphin belongs to the subfamily Delphininae, making this dolphin closely related to the three different species of bottlenose dolphins, humpback dolphin, striped dolphin, spinner dolphin, Clymene dolphin, spotted dolphin, Fraser's dolphin and the Tucuxi and Guiana dolphin.
Oceanic dolphins range in size from the 1.7-metre-long (5 ft 7 in) and 50-kilogram (110-pound) Maui's dolphin to the 9.4-metre (31 ft) and 10-metric-ton (11-short-ton) orca, the largest known dolphin.
River dolphins are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or brackish water. They are an informal grouping of dolphins, which itself is a paraphyletic group within the infraorder Cetacea. Extant river dolphins are placed in two superfamilies, Platanistoidea and Inioidea.
Jun 29, 2024 · Dolphin, toothed whale of the family Delphinidae (oceanic dolphins) or the families Platanistidae and Iniidae (river dolphins).
Bottlenose dolphins are toothed whales in the genus Tursiops. They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins.
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