#pink dolphin

[bethanythebogwitch]

Wet Beast Wednesday: Amazonian river dolphin

It's the last Wet Beast Wednesday of the year. I started doing this little project to help myself get used to Tumblr and encourage myself to use it more often. That absolutely worked and I'm going to keep going. For my first ever WBW post, I discussed an adorable cetacean, so I'm going to call back to that by discussing a less adorable cetacean. Meet the Amazonian river dolphin, also known as the boto, bufeo, and pink dolphin because, well look at it.

(image id: an Amazonian river dolphin peeking out of the water. It is a large dolphin with a long, thin snout, bulbous head, and small dorsal fin. Its entire body is bright pink. end id)

River dolphins are dolphins the exclusively inhabit freshwater. There are several species (from four to six depending on your source) that are not all closely related. Probably the most famous of these is the Amazonian river dolphin Inia geoffrensis. They live in the Amazon, Orinoco, and upper Maderia rivers of South America. There are three subspecies: I. g. geoffrensis (the Amazon river dolphin), I. g. humboldtiana (the Orinoco river dolphin), and I. g. boliviensis (the Bolivian river dolphin, previously considered a separate species). There is also debate on whether the Araguaian river dolphin should be considered a subspecies of Amazonian river dolphin or a separate species. A common name for the dolphins found throughout Brazil is boto, though this is also used to refer to another river dolphin species, the tucuxi, as well as marine dolphins that occasionally enter fresh or brackish water. The amazonian river dolphins is the largest river dolphin, with males reaching 2.5 meters (8.2 ft) and 185 kg (408 lbs). Males are larger than females, averaging 16% longer and 55% heavier. The most famous feature of these dolphins are their color. while they are born grey, they lighten up as they age, eventually becoming pink. The amount of pink varies between individuals, with some being grey with pick spots and others going full Barbie mode. It's not clear why they turn pink and why some are pinker than others. Possible explanations include the distribution of capillaries under the skin, consuming large amounts of pink pigment through their diet (the same thing that happens with flamingos), and exposure to sunlight. Males are generally pinker than females, which may be due to them accumulating larger amounts of pink scar tissue while fighting over females. The dolphins get noticeably pinker when they are excited, which may be similar to a human blushing.

(Image id: a dolphin holding its head out of the water, seen from the front. Its mouth is partly open, showing a single row of teeth within. It is pink. end id)

Amazonian river dolphins are not known for being the prettiest cetaceans. With long, skinny shouts, lumpy bodies, non-distinct dorsal fins, and scarred, rough skin, they won' be winning many beauty contests. Maybe its for the best that they don't have very good eyesight. When living in a place as murky as a major river, eyes often aren't that useful. They instead navigate almost exclusively through echolocation. While not as powerful as they eyes of oceanic dolphins, river dolphin eyes are adapted to take in any available light, letting them see better in low-light environments such as a murky river under a canopy of leaves. The bulbous head contains the melon, an organ found in cetaceans used for echolocation. The melon can change shape, which may help focus the echolocation for different purposes. Part of the lumpy profile of the boto likely comes from their lack of blubber. Living in a tropical river means that river dolphins don't lose nearly as much body heat and therefore don't need the thick layer of blubber that helps streamline oceanic dolphins. They also don't need to be as hydrodynamic as they are a lot slower than oceanic dolphins. While slow, river dolphins are maneuverable and can rotate their flippers to turn themselves around without having to swim in a circle. In addition, unlike oceanic dolphins, the boto's neck vertebrate are unfused, allowing them to turn their head side to side. All of this helps the dolphins navigate and search for food in crowded rivers and flooded sections of forest. Another unique feature is the presence of whiskers on their snouts and cheeks, which are believed to help find food when poking around in the mud and aquatic plants. Yet another unique feature is the fact that they are heterodonts. This means they have different types of teeth. In the front of the snouts are the sharp, conical teeth found in other dolphins, but the uniquely have molar-like teeth in the back. These are used to crush hard prey, such as shellfish and turtles.

(image: a dolphin partially breaching out of the water while upside-down. Its large fins are in the air and its head is turned soits chin is facing the camera. end id)

The diet of the Amazonian river dolphin is the most varied of any toothed cetacean. At least 53 species of fish are part of its diet, though it prefers croakers, chiclids, tetras, and piranhas. As mentioned above, its molar-like teeth also allow it to crush through hard-shelled animals including bivalves, crabs, and turtles. They have been known to cooperate with tucuxi dolphins and otters to hunt, with the different animal working together to drive fish out of hiding places. The dolphins practice seasonal migration to follow their prey. During the wet season, they travel into floodplains, lakes, flooded parts of forests, swamps, and other places that are inaccessible during the dry season. During the dry season, they travel back into the main river. Males return to the river sooner that females and calves. The dolphins are less social than other dolphins, usually traveling alone or in groups of 2-4 members, though larger groups do happen. They do communicate with each other using whistles. During mating season, which usually happens in late June or August, they will congregate in large numbers. Males attempt to court females by carrying objects in their mouths such as branches and leaves and by nipping at the female's fins. Males also become aggressive and will fight with other females and with females that refuse their advances. These fight often leave the males covered in scars and nicks that can be used by scientists to identify them. Males will attempt to mate with as many females as possible. Gestation takes just under a year and calves are born in May and June as the wet season is beginning. The calves will nurse for a year and stay with their mother for two to three years. Females will not mate until their current calf has left, giving a mating frequency for females of between 2 and 3 years. Males may attack calves to force the mother to mate again. The life expectancy of wild dolphins is unknown.

(image id: a dolphin holding a leaf in its mouth. This may be part of a courtship display or play behavior. end id)

Amazonian river dolphins are known to be curious, playful, and not fearful of unfamiliar objects. This may because adults have almost no natural predators. Jaguars, caimans, and anacondas will attack them, but prefer targeting calves over adults. They are known to play with sticks, plants, small animals, and other submerged objects. They are also reported to follow boats and rub up against them and grab oars with their mouths. This may be a combination of play behavior and following boats to catch fish they scare. River dolphins have also been reported to approach humans, usually children, and examine or play with them. Botos feature quite a bit in the mythology and folklore of the peoples of South America. A common myth states that the boto can come on shore at night and take the form of a human, a boto encatado. While appearing as beautiful people, they need to wear hats as their blowholes stay on their heads. Male encantados come to shore to party and seduce women, but must return to the river before the transformation wears off. Many illegitimate children are fathered when an encantado comes to town. Female encantados seduce and bewitch married men. She will visit him on the anniversary of their meeting for seven years. On the seventh year, she turns him into a baby and places him in his wife's womb. Some stories say that they come from an underwater paradise called Encante and visit humans to experience hardships and parties. It is said that people who travel the river at night, especially women and children, may be kidnapped by the dolphins and taken to Encante, from which they will never return. Other stories say that the dolphins can make beautiful music and control storms. Killing one brings bad luck, and eating one brings worse luck, while making eye contact curses you with nightmares. Their body parts had magic powers and were sometimes used as fetishes (not that kind) by shamans.

(image: a man with back to the camera hand-feeding a fish to a dolphin. end id)

Amazonian river dolphins are classified as endangered by the IUCN. Their largest threats come from humans. Overfishing leads to food loss and can lead to the dolphins becoming entangled in nets and drowning. Damming reduced their habitat and excess gold mining releases poisonous mercury into the water. Some are also killed to be used as bait. Fishermen have been known to kill dolphins who damage their equipment. Deforestation is also decreasing usable habitat. Amazonian river dolphins fare poorly in captivity and captive breeding is not considered a viable conservation method.

(image id: a dolphin calf being rescued by a conservationist. the person is holding it out of the water. The dolphin has the same body shape as an adult, but is grey instead of pink).

#wet beast wednesday #amazonian river dolphin #amazon river dolphin #river dolphin #pink dolphin #boto #dolphin #cetacean #freshwater biology #freshwater ecology #amazon river #biology #zoology #ecology #animal facts #cetaceans #boto encantado #encantado #image described #long post

[ohmyboytoy]

#pink dolphin #pink aesthetic #pinkcore

[reality-detective]

A man on a fishing trip in Louisiana spotted what appeared to be a rare, pink dolphin. 🤔

#pay attention #educate yourselves #educate yourself #knowledge is power #reeducate yourself #reeducate yourselves #think for yourselves #think about it #think for yourself #pink dolphin

[highonarttm]

Woe pink dolphins be upon ye

#my art #traditional art #acrylic paint #dolphin #pink dolphin #acrylic painting #artists on tumblr #long time no posy. whoopsies #I was making art just not. good art or finished art #will try to post more again

[tempural]

June 2023's sticker design (for the SCUMSUCK Hot Dog Sticker Club!)

The Taiwanese Humpback Dolphin:

These dolphins are born gray, and turn pink in adulthood. They are unique in that they retain grey spots around their dorsal fin after maturing. There are less than 100 of this type of Taiwanese dolphin left in the wild.

#pink dolphin #taiwanese humpback dolphin #sticker club #draws #dolphins #animals

[marygih]

Peculiar animals

I created an oc ymbryne that has a loop of peculiar animals, soon I will bring conceptual drawings of her peculiar animals. I already had this idea in my head, but today I discovered that in 1995 Jeremy Wade spotted this thing in the Amazon basin that was called holadeira by the locals. Man this would make a great quirky animal:

This is a dolphin, probably a pink dolphin, which was either born with this strange deformity, or unfortunately it was injured by a boat and ended up like this. Either way, I'm going to turn this little guy into a peculiar animal and value his existence.

#mphfpc #miss peregrines home for peculiar children #peculiar #ransom riggs #oc #animals #zoology #dolphin #pink dolphin #cryptozoology

[dailydolphins]

Daily Dolphin Seven

Amazon River Dolphin (Inia geoffrensis)

(May also be known as the boto, beufo, or pink river dolphin)

It is in family Iniidae :3

The amazon river dolphin is a species of freshwater dolphin that lives in South America in the Amazon River, Bolivia, Colombia, Ecuador, Guyana, Peru, and Venezuela, and Orinoco Basin.

It is the largest species of river dolphin, being up to 300-400 lbs and 8-9 feet long.

These animals are threatened and depleting. They are considered endangered.

Only males are pink, and attractiveness is determined on this factor, and is POSSIBLY caused by scar tissue of fighting, maybe it’s their diet, or genetics.

They are born gray.

These dolphins prefer to be alone, in groups of three or four occasionally.

They eat a variety of fish, shrimps, crabs and turtles.

And I love them shut up

IMAGE SOURCES:

INFO SOURCES:

#dolphin #pink dolphin #river dolphins #amazon #Amazon River dolphin #cetacean #marine biology #dolphin therian #dolphinkin #daily dolphins

[pinkcore-png]

#geocities #kawaii aesthetic #kawaiicore #old web #pink asethetic #pink tumblr #pink vibes #pink blog #pinkcore #y2k blog #dolphins #dolphin #pink dolphin #light pink #pastel pink #pink aesthetic #pink moodboard #one piece #pink #y2k icons #y2k fashion #pink y2k #y2k aesthetic #y2k #y2k moodboard #y2k nostalgia #y2kcore #fast moving gif

[crispy-cyptid-crabs]

the best animated character is that lil pink dolphin mf from ENA, idk his name but i love him

#take a chill pill #i mean no ill wiil #ena joel g #joel g #pink dolphin #look at him

[aideshou]

#best swedish fish flavor #dolphin #pink dolphin #strawberry #gummy #Swedish fish #rainbow #sea #ocean #vs #sky today basically

[cf8wrk4u-us]

Mer-May

Transformers Prime

Pink Dolphin Arcee

#transformers #transformers prime #tfp arcee #arcee #art #mermaid #mermay #Mer-May #merformers #dolphin #pink dolphin

[gofixxx2]

#pink dolphin #dolphin #cigarettes #cool #pink #pretty #lolita #love #cute #beauty #random #angel #vintage #old #coquette #couqette #film

[vcbarrera]

Delfin rosado

#delfin rosado #pink dolphin #fauna Colombiana #colombian fauna #my drawings #colombia #acuarela #watercolor

[glittering-pool]

#pink dolphin #dolphin #sea life #key west cutie #aquamarine #y2k summer #2000s summer #surfer girl #2000s #2000s core #cute #pink #2000s dolphin aesthetic

[scaryncute]

Phindoll moodboard! <3

#ena temptation stairway #ena joel g #dolphins #dolphin stim #pink dolphin #pink #pink stimboard

[tempural]

Potential sticker designs for May's Hot Dog Sticker Club!

Sticker Club members can vote on which design I finish first. Not a member yet? Become a zeenie weenie!

For May, we have the choice of:

Twin Gorillas: Western lowland gorillas: One grey gorilla, one vanilla gorilla. They are highly intelligent and critically endangered. The only known albino gorilla was Snowflake - his albinism possibly being the result of naturally occuring inbreeding. This will come in a set of two stickers!

Pink Dolphin: There are several types of pink dolphins in the world.  This particular drawing depicts a Taiwanese Humpback Dolphin, Their pink coloration is due to blood vessels close to the skin's surface.  There are less than 100 Taiwanese Humpback Dolphins left in their natural habitat.

Anglerfish Het Yaoi: <3 size difference! Some types of anglerfish, such as this fanfin anglerfish, display extreme dimorphism and parasitism. The males are 1/10th the size of the female and cannot digest food. Unless they find a girlfriend they will die. Once they find a GF, they fuse organically with her flesh, and they shrivel until they're nothing but a beating heart and set of testes. Some species of female anglerfish may have up to 8 sperm donors attached to her at once.

#fanfin anglerfish #western lowland gorilla #albino gorilla #pink dolphin #taiwanese humpback dolphin #indo pacific humpback dolphin #sticker club #draws #animals #nature #animal art