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A Pacific white-sided dolphin flips out of the water in the Cordell Bank National Marine Sanctuary off California. These dolphins keep close company. [17] White-sided dolphins swim in groups of 10 to 100, and can often be seen bow-riding and doing somersaults. [6] [18] Members form a close-knit group and will often care for a sick or injured ...
Spinner dolphins live in an open and loose social organization. [20] The spinner dolphins of Hawaii live in family groups, but also have associations with others beyond their groups. [5] Mothers and calves form strong social bonds. Spinner dolphins seem to have a promiscuous mating system, with individuals changing partners for up to some weeks.
The Australian snubfin dolphin is unusual among recently described mammals in that a population is accessible for scientific study. Nonetheless, the existence of snubfin dolphins in the waters of northern Australia had only become known to western scientists in 1948, when a skull was collected at Melville Bay (Gove Peninsula, Northern Territory).
The Amazon river dolphin (Inia geoffrensis), also known as the boto, bufeo or pink river dolphin, is a species of toothed whale endemic to South America and is classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis ( Bolivian river dolphin ) and I. g. humboldtiana ...
Risso's dolphin (Grampus griseus) is a marine mammal and dolphin, the only species of the genus Grampus. Some of the most closely related species to these dolphins include: pilot whales ( Globicephala spp.), pygmy killer whales ( Feresa attenuata ), melon-headed whales ( Peponocephala electra ), and false killer whales ( Pseudorca crassidens ...
Atlantic humpback dolphins communicate similarly to other dolphin species via echolocation. [6] Groups generally forage close to shore in shallow waters and often within the surf zone. They appear to feed mainly on inshore schooling fish such as mullet, though a variety of coastal fish and crustacean species are also known as their prey items.
Aerial view of a pod of Indo-Pacific bottlenose dolphins (Tursiops aduncus) with calves at Gordon's Bay, Sydney. The Indo-Pacific bottlenose dolphin (Tursiops aduncus) is a species of bottlenose dolphin. This dolphin grows to 2.6 m (8.5 ft) long, and weighs up to 230 kg (510 lb). [4]
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3] Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).