They can grow up to lengths of more than 2.5 metres. It can grow up to 3 meters long and its color changes with age: kittens are silver-grey, older Amazon dolphins turn pink. So begins the life of a little pink river dolphin calf. These observations suggest that the Amazon river dolphin is found in higher density than any other cetacean. So, what actually is a Pink Dolphin? Amazon Pink River Dolphin Interesting Facts . The Amazon River dolphins are one of the few species of fresh water and the most well-known river dolphins. [6] Another source of concern is the difficulty in keeping these animals alive in captivity, due to intra-species aggression and low longevity. They are harder to train than most other species of dolphin. However, they are predominantly crepuscular. The Amazon river dolphin, also known as the pink river dolphin or boto, lives only in freshwater. The pink river dolphin is now endangered. Learn more about whales and dolphins and what we can do to protect them. However, echolocation in shallow waters and flooded forests may result in many echoes to keep track of. [8], In the Pacaya-Samiria National Reserve, Peru, photo-identification is used to recognize individuals based on pigmentation patterns, scars and abnormalities in the beak. They sometimes take advantage of the disturbances made by boats to catch disoriented prey. Washington, DC 20037. The distribution of dolphins in the rivers and surrounding areas depends on the time of year; in the dry season they are located in the river beds, but in the rainy season, when the rivers overflow, they disperse to the flooded areas, both the forests and the plains. [9], The Amazon river dolphin is the largest river dolphin. It has also been observed that captive dolphins share food. [51] These may or may not be accompanied by the intervention of a shaman. Despite living in small groups, they’re still incredibly curious and … Pink dolphins in Colombia. In some food-rich areas or at the mouths of the rivers they can be found in larger groups, but it’s less common. The International Union for the Conservation of Nature lists the pink river dolphin as vulnerable to extinction, mostly due to habitat loss. Interestingly, while the dolphin is named after its pink color, actually when it is young it is gray. [17], The texture of the body is robust and strong but flexible. This unusual mammal lives in the Amazon and Orinoco rivers, and as such is a freshwater animal. [5] Today, however, the Amazon river dolphin has been reclassified into the superfamily Inioidea. The diet becomes more selective during the dry season when prey density is greater. 72 individuals were recognized, of which 25 were again observed between 1991 and 2000. These Amazon River Dolphins aren’t all pink (but most of them are) So, despite being called the pink river dolphin, not all of them are pink. Pinky has surfaced again: The Louisiana bottlenose dolphin with a bubblegum-pink hue is making waves on social media this week. Up to 9 feet (2.7 meters) long and 300 pounds (136.1 kilograms), Pink River Dolphins are the largest freshwater dolphins in the world. The maximum range of motion was 220 kilometres (140 mi), with an average of 60.8 kilometres (37.8 mi). Later, it was shown that males were larger than females and are documented wielding an aggressive sexual behavior in the wild and in captivity. However, in the dry season, there is no such separation. A mother pink river dolphin gives birth to its baby in the water. In inland cities far from the coast, many, if not most, of the fetishes are derived from domestic animals such as sheep and pigs. WWF offices in Bolivia, Brazil, and Colombia coordinated a tri-national effort to tag and study river dolphins, applying satellite GPS technology to the task for the first time. This water mammal is the largest of all the other river dolphin species, and cannot survive in salt water. [2][3] The three subspecies are distributed in the Amazon basin, the upper Madeira River in Bolivia, and the Orinoco basin, respectively. The pectoral fins are large and paddle-shaped. See more ideas about river dolphin, pink river dolphin, pink river. Gestation is estimated to be around eleven months and captive births take 4 to 5 hours. The International Union for the Conservation of Nature lists the pink river dolphin as vulnerable to extinction, mostly due to habitat loss. The mercury reaches dolphins through the food chain. This aquatic creature may only be found in freshwater environments, and it is different from the mari… Amazon river dolphins typically weigh up to 352 pounds. They are only found in the water of the Amazon River, the Orinoco River and the Araguaia River. The species Inia geoffrensis was described by Henri Marie Ducrotay de Blainville in 1817. [8], Males and females appear to have selective habitat preferences, with the males returning to the main river channels when water levels are still high, while the females and their offspring remain in the flooded areas as long as possible; probably because it decreases the risk of aggression by males toward the young and predation by other species. It inhabits South America, mainly in the Amazon river, but also in the Orinoco basin and Madeira river.. They have a long powerful beak, small eyes and are slow swimmers. 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. [26], In captivity, courtship and mating foreplay have been documented. An Amazon River Dolphin is also often referred to as a Pink River Dolphin, a Boto or a Bufeo. Here are some facts about the Amazon River Dolphin. Density was estimated at 0.08- 0.33 animals per square kilometer in the main channels, and 0.49 to 0.93 animals per square kilometer in the branches. Sometimes they can swim alone. [14] As such the species level distinction once held is not supported by current results. In traditional Amazon River folklore, at night, an Amazon river dolphin becomes a handsome young man who seduces girls, impregnates them, and then returns to the river in the morning to become a dolphin again. There is high demand for catfish because it is sold at a high price in Brazil. Apparently, there is little competition for food between these species, as each prefers different prey. They are also commonly found in the streams and main rivers of the Orinoco river systems; the upper Madeira river in South America and Pearl river of Hong Kong. [23], Like other dolphins, river dolphins use whistling tones to communicate. It is a relatively abundant freshwater cetacean with an estimated population in the tens of thousands. [22], Captive studies have shown that the Amazon river dolphin is less shy than the bottlenose dolphin, but also less sociable. The body color varies with age. It is found throughout much of the Amazon and Orinoco river basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. Amazon Pink River Dolphin Interesting Facts . Newborns and the young have a dark grey tint, which in adolescence transforms into light grey, and in adults turns pink as a result of repeated abrasion of the skin surface. [22] Pods as large as 37 individuals have been seen in the Amazon, but average is three. In some food-rich areas or at the mouths of the rivers they can be found in larger groups, but it’s less common. The largest congregations are seen in areas with abundant food, and at the mouths of rivers. The species is listed in Appendix II of the Convention on International Trade in Endangered Species Fauna and Flora (CITES), and Appendix II of the Convention on the Conservation of Migratory Species of Wild Animals,[47] because it has an unfavorable conservation status or would benefit significantly from international co-operation organized by tailored agreements. ", "Bolivia enacts law to protect Amazon pink dolphins", "Myths And Legends of the Amazon's Pink River Dolphin", Convention on Migratory Species page on the Amazon Dolphin, https://en.wikipedia.org/w/index.php?title=Amazon_river_dolphin&oldid=992948291, Taxa named by Henri Marie Ducrotay de Blainville, Articles lacking reliable references from June 2017, Srpskohrvatski / српскохрватски, Creative Commons Attribution-ShareAlike License, This page was last edited on 7 December 2020, at 23:58. In the Brazilian and Colombian Amazon, river dolphins are often deliberately killed for use as bait in the “mota” catfish fishery, which gathers fish that demand high prices in the city. While hunting is a major threat, in recent decades greater impacts on population have been due to the loss of habitat and inadvertent entanglement in fishing lines. The skull of the species is slightly asymmetrical compared to the other toothed whales. This time we took to the river to swim with pink dolphins. The boundaries are set by waterfalls, such as the Xingu and Tapajós rivers in Brazil, as well as very shallow water. This dolphin has been very famous due to its pink color and usually people doubt the existence of a pink colored dolphin. On the 7th night of visiting, she changes the man into a female - baby or male, and soon transfers it into his own wife's womb. River dolphins are rapidly disappearing and so are their natural river habitats. [10], However, based on skull morphology in 1994, it was proposed that I. g. boliviensis was a different species. It is sometimes known simply as boto. The dolphin develops its pink color as it grows older. Lactation takes about a year. This week for reading we are doing another amazon jungle - based google drawing. The interval between births is estimated between 15 and 36 months, and the young dolphins are thought to become independent within two to three years. See more ideas about river dolphin, pink river dolphin, pink river. As the Amazon is fed by large stretches of rain forrest, every year it floods its banks for extended periods of time. [51] In the area, tales relate it is bad luck to kill a dolphin. [4][6], Amazonian rivers are often very murky, and the Amazon river dolphin is therefore likely to depend much more on its sense of echolocation than vision when navigating and finding prey. Pink river dolphin definition is - boto. These Amazon River Dolphins aren’t all pink (but most of them are) So, despite being called the pink river dolphin, not all of them are pink. [25] The abundance of distinct fish species lures the Amazon River dolphin into the várzea areas of high water occurrences during the seasonal flooding. World Wildlife Fund Inc. is a nonprofit, tax-exempt charitable organization (tax ID number 52-1693387) under Section 501(c)(3) of the Internal Revenue Code. They are derived from Sotalia guianensis, are most likely harvested along the coast and the Amazon River delta, and then are traded up the Amazon River. It measures up to three meters in length and weighs about 125 kilos. Amazon River Dolphin Habitat. A recent study has shown, despite the claim of the seller and the belief of the buyers, none of these fetishes is derived from the boto. Living in South American river systems is a hidden creature that is known to few but the locals. Aqui a tradução inglês-alemão do Dicionário Online PONS para pink river dolphin! [34][39][42] Scavenger species feed upon the carcasses, and the complexity of the river currents make it nearly impossible to locate all of the dead animals. The only connection between the Orinoco and the Amazon is through the Casiquiare canal. Also known as the ‘Pink River Dolphin’ or the ‘Boto’, they are not to be confused with the marine pink dolphins. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis (Bolivian river dolphin) and I. g. humboldtiana (Orinoco river dolphin) while position of Araguaian river dolphin (I. araguaiaensis) within the clade is still unclear. The dorsal fin, although short in height, is regarded as long, and the pectoral fins are also large. They all have female-biased sexual dimorphism, with the females being larger than the males. [48], In September 2012, Bolivian President Evo Morales enacted a law to protect the dolphin and declared it a national treasure. They have one of the widest ranging diets among toothed whales, and feed on up to 53 different species of fish, such as croakers, catfish, tetras and piranhas. The Bolivian river dolphin (I. boliviensis), native to a few remote streams in the Bolivian Amazon, is slightly smaller than the Amazon river dolphin, and its skin is coloured grayish pink. [11] In 2002, following the analysis of mitochondrial DNA specimens from the Orinoco basin, the Putumayo River (tributary of the Amazon) and the Tijamuchy and Ipurupuru rivers, geneticists proposed that genus Inia be divided into at least two evolutionary lineages: one restricted to the river basins of Bolivia and the other widely distributed in the Orinoco and Amazon. Pink dolphins, also popularly known as Boto, Bouto or Amazon river dolphin are a type of dolphin species living in the Amazon rainforest with bodies well adapted to the Amazon river. However, it is classified as vulnerable in certain areas due to dams that fragment and threaten certain populations, and from other threats such as contamination of rivers and lakes. Also called the boto, the Amazon river dolphin sometimes comes in pink—at least the males do. The Pink dolphins in Peru live in the Amazon River basin. Taking a trip to see pink river dolphins is a must for anyone who loves Amazon wildlife. They all start off grey and as they get older some turn pink and some stay grey. Amazon Rainforest Pink Dolphin Facts . … Pink dolphin: fun facts. A mother pink river dolphin gives birth to its baby in the water. Join us to make change. It is found throughout much of the Amazon and Orinoco river basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. Speak up for species and places through WWF's Action Center. The fin size, unfused vertebrae, and its relative size allow for improved manoeuvrability when navigating flooded forests and capturing prey. The most unique, by far, is the pink river dolphin. [42][43] The negative reactions of the local fishermen are also attributed to the Brazilian Institute of Environment and Renewable Natural Resources prohibition on killing the Amazon river dolphin, yet not compensating the fishermen for the damage done to their equipment and catch. [34][45] The use of the Amazon river dolphin carcass as bait for the piracatinga dates back to 2000. They mainly eat catfish, which are bottom feeders greatly affected by metals like mercury in the water. They occasionally jump out of the water, sometimes as high as a meter (3.14 ft). Understanding the threats that impact them and protecting them ensures the preservation of their unique habitat. 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