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The snubfin dolphins (Orcaella) contain two of the 35 species of oceanic dolphins that make up the Cetacean family of Delphinidae. [5] The phylogenetic status of Orcaella has long been confused. Although the snubfin dolphins share similar external features with the Monodontidae (narwhal), [ 2 ] a genetic study conducted by Arnason and ...
The current status of parks marked with an asterisk (*) is unknown; these parks may have closed down, moved, changed names or no longer house any dolphins. Due to the large number of facilities worldwide, this list may not be complete.
They are found all along the northern coasts of Australia, from Broome, Western Australia, to the Brisbane River in Southeast Queensland. [10] They are not thought to be common, and are being given a high conservation priority. Australian snubfin dolphins are currently listed as "vulnerable" by the IUCN. [11]
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.
Four of the species found in American Samoa are bats, two are whales, and two are dolphins. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature :
An alarming number of bottlenose dolphins in the Gulf of Mexico were found to have traces of fentanyl in their system, shocking scientists with a horrifying twist to the drug epidemic.
A total of 65 Irrawaddy dolphins has been found dead along the coast of Trat Province in the past three years. [68] The local fishing industry is blamed for the deaths of the dolphins. [69] In January 2013, over a dozen dead Irrawaddy dolphins were found on the coast of Thailand. These dolphins were said to be dead because of a lack of oxygen.
A December 2006 survey found no members of Lipotes vexillifer (commonly known as the baiji, or Chinese river dolphin) and declared the species functionally extinct. [4] The current classification of river dolphins is as follows: [3] [5] [6] Life reconstruction of Arktocara yakataga, an allodelphinid. Superfamily Platanistoidea Family Platanistidae