This species is most closely related to the Amazon river dolphin (Inia geoffrensis), from which it is believed to have split about 2.08 million years ago, on the basis of mitochondrial DNA sequence comparisons.The time of divergence corresponds to the time the Amazon and Araguaia-Tocantins river basins became separated, implying vicariant speciation. x; UniProtKB. Annotation systems. The Amazon pink river dolphin is the biggest and smartest animal of the freshwater dolphin species. Protein sets from fully sequenced genomes. Dolphins are part of the toothed whales.Generally, they are among the smaller whales.Most live in salt water oceans, but some live in rivers – there are oceanic dolphins and river dolphins.Dolphins are from 1.5 metres (4.9 ft) to 4 metres (13 ft) long, but the largest dolphin, the killer whale (or orca), can be up to 8 metres (26 ft) long.. All dolphins live in groups called "pods". They may be pink in some areas as one. So, what actually is a Pink Dolphin? That’s not the only difference though. They range in size from the 5-foot (1.5 m) long South Asian river dolphin to the 8-foot (2.4 m) and 220-pound (100 kg) Amazon river dolphin.Several species exhibit sexual dimorphism, in that the males are larger than the females. Help pages, FAQs, UniProtKB manual, documents, news archive and Biocuration projects. The Amazon river dolphin, pink dolphin or Boto is a freshwater dolphin. Pinky has surfaced again: The Louisiana bottlenose dolphin with a bubblegum-pink hue is making waves on social media this week. Protein knowledgebase. River dolphins are relatively small compared to other dolphins, having evolved to survive in warm, shallow water and strong river currents. It inhabits South America, mainly in the Amazon river, but also in the Orinoco basin and Madeira river.. Proteomes. Indus River Dolphin (or Bhulan), Platanista gangetica minor Family Iniidae Amazon River Dolphin (or Boto), Inia geoffrensis Family Lipotidae Chinese River Dolphin (or Baiji), Lipotes vexillifer (possibly extinct, since December 2006) Family Pontoporiidae La Plata Dolphin (or Franciscana), Pontoporia blainvillei Taxonomy. Born grey, adult Amazon River dolphins turn pink or pinkish-grey as they mature, with males being both bigger and pinker than females. Taxonomy. Sequence archive. They can move their head in more directions than any other dolphin species. Taxonomy [edit]. Bolivian River Dolphins were discovered by the Western world in 1832 by French researcher Alcide d'Orbigny. Help. Discover why this elusive dolphins species turns a pink coloring and much more below! With low, ridge-like dorsal fins, long, skinny snouts, plump bodies, chubby cheeks and round, bulbous foreheads, botos have developed a unique look of their own. UniRef. One of the unique features of this dolphin is that they have a flexible neck. The Amazon river dolphin (Inia geoffrensis), also known as the boto, bufeo or pink river dolphin, is a species of toothed whale 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 (Orinoco river dolphin). Species Description: The pink dolphin weighs up to 200lbs or 90 kilograms and are 2.5 to 3 meters or 8.25 to 9.75 ft males are a little bit bigger than the females.Their a flush pink but that might be the age or chemical disposition of the water and the temperature. The Amazon river dolphin (also known as the pink dolphin and botos) is a freshwater animal. UniParc. Sequence clusters. That is the result of some of the vertebrae in the neck not being fused. Both bigger and pinker than females pink coloring and much more below the result some! 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