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Bookmark or Share- Dolphin facts and information - Whale & Dolphin Conservation USAAll dolphins have conical-shaped teeth. A Risso's dolphin has 14 while a spinner dolphin can have 240. The orca (killer whale) is the largest dolphin. Hector's dolphin and Franciscana are two of the smallest. The five river dolphin species inhabit the large waterways of Asia and South America.
- Bottlenose Dolphin | National GeographicBottlenose dolphins are well known as the intelligent and charismatic stars of many aquarium shows. Their curved mouths give the appearance of a friendly, permanent smile, and they can be trained ...
- Dolphin Facts - National GeographicAs mammals, they have warm blood and nurse their young. Dolphins have more than one mate, and generally produce a single offspring that will stay with the mother for up to six years, depending on ...
- Dolphin - WikipediaA dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species 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).
- Dolphin | Facts & Pictures | Britannicadolphin, any of the toothed whales belonging to the mammal family Delphinidae (oceanic dolphins) as well as the families Platanistidae and Iniidae, the two that contain the river dolphins. Of the nearly 40 species of dolphins in the Delphinidae, 6 are commonly called whales, including the killer whale and the pilot whales.
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