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Atlantic white-sided dolphins jump and breach more frequently when in larger groups, as this behaviour might have a social context. [16] They have a wide vocal repertoire which includes squeals, whistles, clicks and buzzes. [17] [20] It is suggested that vocalisation is used for communication as noise production increases during socialising. [20]
A rare "super pod" of more than 1,500 dolphins have been captured on video frolicking and enjoying the waters off the central coast of California. Video footage captured by Capt. Evan Brodsky of ...
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).
Their sonar clicks have a peak frequency of 115 kHz, [15] while their social whistles are at around 35 kHz, and can be audible to others of their species at distances of up to 10 km (6.2 mi). [16] White-beaked dolphins are acrobatic; they will frequently ride on the bow wave of high-speed boats
They have a dorsal ridge rather than a fin. Their neck vertebrae are unfused, allowing them to turn their heads sharply. Like other river dolphins, I. araguaiaensis has a prominent forehead and a much longer snout than those of most marine dolphins, as well as smaller eyes than marine dolphins. Because their aquatic environment is often turbid ...
Scientists trying to understand the hunting behaviors of bottlenose dolphins have come up with a unique solution: fit them with video cameras.
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They also have glands on their eyelids and an outer corneal layer that act as protection for the cornea. [30]: 505–519 Olfactory lobes are absent in river dolphins, suggesting that they have no sense of smell. [30]: 481–505 River dolphins are not thought to have a sense of taste, as their taste buds are atrophied or missing altogether.