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Common dolphin (swimming) 55–64 km/h (34–40 mph) [n] Common dolphins are the fastest marine mammals. When reaching their top speed, they take very short breaths. As an example, fin whales, which are much larger, can empty and refill their lungs in 2 seconds Tiger: 56–64 km/h (35–40 mph) [o]
The brain to body mass ratio (not the encephalization quotient) in some members of the odontocete superfamily Delphinoidea (dolphins, porpoises, belugas, and narwhals) is greater than modern humans, and greater than all other mammals (there is debate whether that of the treeshrew might be second in place of humans). [8] [9] In some dolphins, it ...
There are also fewer than ten pilot whales, Amazon river dolphins, Risso's dolphins, spinner dolphins, or tucuxi in captivity. Two unusual and rare hybrid dolphins, known as wolphins , are kept at Sea Life Park in Hawaii , which is a cross between a bottlenose dolphin and a false killer whale .
Some whales, such as the sperm or Cuvier's beaked, can spend over an hour between breaths, the Whale and Dolphin Conservation reports. It may not look like it, but whales have hair .
A common bottlenose dolphin (Tursiops truncatus). 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).
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This dolphin is found mainly in the Alboran Sea and the north-western Mediterranean [13] [14] [17] [34] where its population is estimated at between 3,000 and 5,000 individuals. [2] The other pilot whale species, the long-finned pilot whale (G. macrorhynchus), seems to have been seen at least once in the Mediterranean, probably as a stray group ...