Pink Bottlenose Dolphin

A rare pink bottlenose dolphin affectionately known as ‘Pinky’ has been spotted in Louisiana, and her fans think she could be pregnant. Captain Erik Rue, who runs a chartered boat service on the.
The Amazon river dolphin, pink dolphin or Boto is a freshwater dolphin. It inhabits South America, mainly in the Amazon river, but also in the Orinoco basin and Madeira river.
So, what actually is a Pink Dolphin?
- The pink coloration of Pinky, the Bottlenose Dolphin is due to Albinism. Blood vessels show through its pale skin devoid of Melanin pigment, which would otherwise be covered by the usual grey color of Dolphins.
- The Amazon River dolphin averages about 6.5 feet in length. They come in all shades of pink, from a dull gray-pink, to rosy colored pink, to a bright pink like that of the flamingo. This color variation is due to the clarity of the water in which the dolphin lives; the darker the water, the pinker the dolphin will be.
- A rare pink Bottlenose dolphin, Tursiops truncatus, has resurfaced two years after it had first been seen in Lake Calcasieu, an inland saltwater estuary, north of the Gulf of Mexico in southwestern Louisiana. The young dolphin, which was first sighted as a calf in June 2007 and photographed a few weeks later, gets its brilliant Continue reading 'Rare Pink Bottlenose Dolphin'.
Pink dolphins (Inia geoffrensis) are a species of Toothed whales classified in the family Iniidae and it contains three sub-species: Amazon river dolphin (I. g. geoffrensis), Bolivian river dolphin (I. g. boliviensis) and Orinoco river dolphin (I. g. humboldtiana).
They seem to have some relationship with their South Asian counterparts, the Ganges river dolphin (P. g. gangetica), predominant in India, and Indus river dolphin (P. g. minor), predominant in Pakistan. The pink dolphin is the biggest of all river dolphins.
How does a Pink Dolphin look? Can you show me one?
With the adult males reaching an average length of 2.3 metres (7.6 ft) and an average weight of 150 kilograms (340 lb), and the females reaching a length and weight of 2 metres (6.6 ft) and average 100 kilograms (220 lb), they will not pass unseen by your side if you are navigating in their habitat. In contrast with other cetaceans, in this case, the male is bigger than the female.

Pink Bottlenose Dolphin Louisiana

Their cervical vertebrae are not fused, allowing the head to turn 90 degrees to each side. This, in conjunction with large pectoral fins, gives them very good maneuverability to swim through the flooded forest searching for their prey. You can see the way they swim and move in this video put up by National Geographic.
In his head we found quite a few interesting things, so for the ones of you digging this article for your homework, keep reading!
They have small eyes, but good eyesight, in and out of the water. Between 25-28 pairs of teeth to each side of both jaws helps them capture fish, tortoises or crabs. It is curious tho, that they are the only toothed whales to have different types of teeth in their jaw. And finally, the melon on their heads, which they can modify by muscular control for using it as a Biosonar (or Animal echolocator)
Are Pink Dolphins really Pink?
Depends. The color of their bodies varies with age. Young dolphins have a dark gray color, which in adolescence transforms into light gray. Adults can display a range of colors from light gray to pink (varying from solid to mottled) and even brownish.
It is not entirely clear why they have this color but one of the strongest hypothesis says it’s due to the repeated abrasion of the skin surface. Some observations correlate with this theory, for example, that males tend to be pinker than females (they fight more between them, displaying intra-species aggression). Another hypothesis, like the one of Tim Caro, mammal coloration expert from the University of California at Davis, says that this coloration could be to match the particulate red mud that follows heavy rains in some rivers.
All in all, no one knows for sure why.
What do Pink Dolphins eat?
Basically, pink dolphins eat almost anything small that swims. They eat around 50 species of Amazon fishes, including piranhas. Turtles and crabs are also on the daily diet which consists of around 2.5% of its body weight every day.
Pink dolphins have a powerful jaw. The front row of teeth helps to puncture and to hold fishes (or other preys). The back row is for crushing and smashing.
After they catch their food pink dolphins swallow their food without chewing. All indigestible parts (like bones or spines) are regurgitated after.
Are Pink Dolphins smart?
We might have heard that dolphins are very smart animals, but what kind of intelligence do they have?
The answer is Cetacean intelligence.
They are aware of themselves and their different body parts, are able to experience basic emotions, engage themselves in some degree of abstract thought and understand the structure of their environment. They learn by observing and even mimicking, solve problems and choose their own actions, even remembering their own recent behavior.
When interacting with humans, they appear to recognize the difference between children and adults and tend to be more gentle and patient with children. Some researchers suggest that dolphins are “non-human persons” who qualify for moral understanding as individuals.
There are no specific studies related to Pink dolphins and their intelligence, but being part of the same family we can suppose that they share most of their cognitive system.
For more in-depth information about the brain power of dolphins (and whales) click here
Are Pink Dolphins threatened or endangered now?
Yes, they are threatened by many factors such as the contamination of the river (with mercury, for example, by the illegal mining operations) and the increased deforestation of the Amazon jungle that affects many different ecosystems changing the migration patterns of some fish species that they eat.
But the main threat to them is the hunting and deliberate killing along with their incidental capture in fishing gears. A big part of the income of riverside families that live in the Amazon is the fishing activity, and dolphins are prone to damage fishing equipment when they get entangled in it or when they want to eat the fish from the nets. They are also used in the Catfish or Piracatinga, (Calophysus macropterus) fishery as bait, and the increasing demand for the piracatinga has created a market for distribution of dolphin carcasses.
Some efforts in favor of their protection are being made. Precautionary measures are one of those efforts, through good fishing practices taken together by fisheries managers and fishermen to start developing multiple-species management and ensure sustainable practices.
Another measure is law enforcement, as the one put by IBAMA that prohibits killing the Amazon river dolphin (but fails to compensate the fishermen for the damage done to their equipment and catch), or the one made in year 2012 by the President of Bolivia, Evo Morales putting up a law that bans fishing freshwater pink dolphins and declares the species a National Treasure.
And what about their Conservation Status?
The species is listed in Appendix II of CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora).
It means that pink dolphins (along with other 21.000 species) are not necessarily threatened with extinction, but may become so unless a strict regulation is enforced in order to protect the survival of the species in the wild.
It is also listed in Appendix II of CMS meaning that they would significantly benefit from international co-operation regarding their conservation.
The Conservation Status is a classification system that shows if a species still exists or how likely it is to become extinct in the near future.
The Pink dolphin is classified as Threatened (between Endangered and Vulnerable, due to lack of actual data)
All in all, the current situation for the Pink Dolphin is worrying, with a high to very-high risk of extinction, more coordinated efforts are still needed for their preservation.
Other facts about Pink Dolphins
- The Boto or pink dolphin is subject to a particular Amazon mythology. It is said that this freshwater dolphin turns itself into a handsome man when the sun goes down. Some say it morphs itself fully clothed in white, some say with a straw hat, and some other people say it takes the form of some other man from nearby villages. What for? To hypnotize and seduce unsuspecting your woman, impregnate them, and return to the river before the sun goes up to turn back into pink dolphins. This is one of the most widespread Amazon rainforest myths, and some Amazon villagers attribute many of the single mom kids to this Amazon river dolphin. They even tell young girls to be careful about strangers and keep away from the river at night.
- Like most other dolphins, pink dolphins sleep with one eye open. They can do that by putting one half of their brain to sleep and keep the other side of the brain conscious and functioning. They alternate those sides to be able to rest and at the same time be on the lookout for predators.
- The season for giving birth to young pink dolphins coincide with the flooding season of the Amazon river (between May and June), providing an advantage to female dolphins and their babies.
- After birth, it takes between 2-3 years for young pink dolphins to be considered independent and adults.
- Last, but not least, pink dolphins are real. Just in case you were still wondering.
Wanna see some Pink Dolphins in the Amazon river?
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Photo attributions:
(1) Cetacea range map Amazon River Dolphin by Pcb21 and Vardion / CC BY-SA
(2) Unknown/Pending attribution
(3) Amazonas-Flussdelfin Orinoko3 by Oceancetaceen / CC BY-SA
(4) Pucate_2015 07 27_0586 by Harvey Barrison / CC BY-SA
(5) Boto vermelho by lubasi via VisualHunt / CC BY-SA
(6) Inia geoffrensis by Joachim S. Müller via Visual hunt / CC BY-NC-SA
(7) Conservation Status Ranking by Peter Halasz (Pengo) / CC BY

Most of us are familiar with the fun and playful blue bottlenose dolphin named Flipper, made famous by Hollywood productions, but less people know about Flipper’s rosy-colored cousin, the pink river dolphin. This rare species is found in the freshwater rivers of the Amazon near Iquitos, Peru. Upholding the reputation of its salt water dwelling kin, the Amazon river dolphin is social, friendly and extremely intelligent, making it one of the highlights of a visit to the Amazon Basin. They also love the company of humans. When you visit the Amazon, don’t be afraid to go for a swim with these remarkable creatures.
Did you say a pink dolphin?
Yes, Amazon river dolphins are pink. Scientists are not entirely sure why, but a common theory suggests that their rosy pigment comes from their blood vessels visible through a thin layer of skin. In fact, Amazon river dolphins become more pink in color when excited, much like humans when we blush.
Pink Jumping Bottlenose Dolphins
These dolphins are an endemic species to the Amazon Rainforest, meaning that they are not found in any other part of the world. While there are other freshwater dolphins in places like China and parts of Southeast Asia, there are only 2 documented species living in the Amazon Basin of South America. Of those 2 species, the pink river dolphin is the most charismatic.
In all honesty, the pink river dolphin is not the cutest water-dwelling animal of the Amazon. These dolphins are larger than a person, about 8 feet long, with a bulge on the head and a long, thin snout that is curved upwards, as if it is permanently smiling. They have large flippers and a short crest where the dorsal fin should be. They are not particularly fast swimmers, but their unique bone structure allows them to maneuver with agility through trees and brush when the river floods during the high water season.
Pink Bottlenose Dolphin Facts
Kathleen McAfee is wanderlust addict with a thirst for adventure. She is currently based in Lima, Peru, and a member of the marketing team at Peru for Less where you can also book a Delfin I cruise or Delfin II cruise!