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Some Irrawaddy dolphins kept in captivity have been trained to do spyhopping on command. The Irrawaddy dolphin is a slow swimmer, but swimming speeds of 20–25 kilometres per hour (12–16 mph) were reported when dolphins were being chased in a boat. [11]
The Irrawaddy dolphin shares similar physical characteristics with the beluga whale, but its genetic makeup ties the Irrawaddy dolphin and the killer whale as close relatives of one another. [13] Irrawaddy dolphins have a slate blue to a slate gray color and their bodies can grow up to 180-275 centimeters in length. [14]
It closely resembles the Irrawaddy dolphin (of the same genus, Orcaella) and was not described as a separate species until 2005. The closest relative to the genus Orcaella is the killer whale, Orcinus orca. [citation needed] The Australian snubfin has three colors on its skin, while the Irrawaddy dolphin only has two. The skull and the fins ...
The Irrawaddy River (Burmese: ဧရာဝတီမြစ်, pronounced [ʔèjàwədì mjɪʔ], official romanisation: Ayeyarwady [5] [note 1]) is the principal river of Myanmar, running through the centre of the country. Myanmar’s most important commercial waterway, it is about 1,350 miles (2,170 km) long.
The sound is also home to three species of dolphins: the Irrawaddy dolphin found in the Inner Sound, the bottle-nosed dolphin in the Outer Sound, and Risso's dolphin found at Minapla Bay. [5] The surrounding forested landscape consists of primarily dipterocarp trees such as narra, ipil, apitong, dao, kamagong and mancono.
It may also be true for the Irrawaddy dolphin and the finless porpoise that, although the species may be found in both freshwater and marine environments, individual animals found in rivers may not be able to survive in the ocean, and vice versa. [19] The tucuxi is currently classified as an oceanic dolphin (Delphinidae). [20]
As the name implies, they tend to be found in the open seas, unlike the river dolphins, although a few species such as the Irrawaddy dolphin are coastal or riverine. The Delphinidae are characterized by having distinct beaks (unlike the Phocoenidae), two or more fused cervical vertebrae and 20 or more pairs of teeth in their upper jaws.
Dolphins. The Irrawaddy dolphin (Orcaella brevirostris) is the flagship species of Chilika lake. Chilka is home to the only known population of Irrawaddy dolphins in India [16] and one of only two lagoons in the world that are home to this species. [12] It is classified as Critically Endangered, in five of the six other places it is known to ...