Pink Dolphin

Amazon River Pink Dolphins

Dolphins are widely known as ocean inhabitants, however very few people realize that there are several species of fresh water dolphins living in some of the largest rivers in the world.

There are five species of dolphins that live in rivers, being the most popular of them the Pink Dolphin or Boto that lives in the Amazon River.

The Pink dolphins from the Amazon River are also known as Inia Geoffrensis, their scientific name.

Dolphins in rivers like the Pink Dolphin have special adaptations to survive in their habitat, so they are not the same as the dolphins we usually know from the ocean.

In fact, pink dolphins are distantly related to sea dolphins as they belong to different families. Dolphins who live in oceans belong to the family Delphnidae, while river dolphins are part of the family Platanistoidea.

Among all the river dolphins, the Amazon River Pink Dolphins are the most intelligent of them, as they have a brain capacity 40% larger than humans.

While Pink Dolphins are known to inhabit the Amazon River, they can also be found in some other rivers in South America, like the Orinoco River and the Madeira River.

Pink dolphins are probably the last of the river dolphins as the other four species are very close to extinction. In fact, also pink dolphins have been listed by the International Union for Conservation of the Nature as endangered species.

The contamination levels of the Amazon River as well as the destruction of their habitat, has put pink dolphins in risk of extinction.

Pink Dolphin with Prey

Facts about Pink Dolphins

Social Habits and behavior of Pink Dolphins

Pink dolphins are usually found alone or in couples contrasting with the group behavior of oceanic dolphins.

This behavior is the result of having no natural predators in the Amazon River, so pink dolphins do not need to live in pods for protection as ocean dolphins do.

However, pink dolphins also group in pods of 5 to 8 members to socialize, reproduce and hunt together, but they can split individually to avoid competing for food.

Pink dolphins are the friendliest of the river dolphins when dealing with humans and there are several stories of people being pushed to the shores by them.

What do Pink Dolphins Eat?

Pink dolphins eat crabs, catfish and small river fish.

As some of these species live at the bottom of the river, pink dolphins usually swim looking at the bottom of the river to find food.

To help perform this task, evolution has provided pink dolphins with a cervical vertebra that is not fused to the column, allowing them to move their head up to 180 degrees.

They swim up to 30 kilometers in one day, although they usually swim slowly looking for food at the bottom of the river.

Pink Dolphin Habitat

Pink Dolphin Anatomy

Regardless their name, Pink dolphins can also be found in light gray or brown colors.

In fact, scientists have no evidence of the reason why pink dolphins are pink. It could be product of evolution to help them adapt to river life or by the presence of capillaries near the surface of the skin what provide them such color.

However, observation has shown that pink dolphins change their color when they are excited or surprised, very much like blushing in humans.

Amazon River dolphins are between six and eight feet long when adults, and weigh up to 355 pounds when they are fully grown.

Pink dolphins are smaller than sea dolphins but they have longer snouts, another adaptation provided by evolution, which is used by them to hunt at the bottom of the river.

Evolution has removed dorsal fins from Pink dolphins providing they with humpbacks instead.

Pink River Dolphins

Pink Dolphin Reproduction

Mating between a pair of pink dolphins, start a gestation period which lasts from nine to twelve months; they give birth to calves close to 75 cm long and 1 Kg weight.

Pink dolphins mate with the anticipation needed to deliver their babies when the Amazon River is at its high, which occurs between May and July.

As the other species of river dolphins, pink dolphins are almost blind, due to the muddy waters where they live in, but their brains are extremely large and well developed.

The Future of Pink Dolphins

As I mentioned before, pink dolphins are getting endangered because of the human activity in their habitat. While we all know that the economic development is needed to fulfill the needs of 6 billion humans, we as race need to find a way to progress without destroying everything else in this planet.

Frases de Amor

JEAN-MICHEL COUSTEAU: OCEAN ADVENTURES | Pink Dolphins

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Comments 49 comments

Karen  8 years ago

Pink dolphins live in Outer Banks, North Carolina also.


Sara says 8 years ago

Good show. It really helped me on my English assignment. It was interesting and cool. Tomorrow I'm asking my teacher if I can show the video clip to the class. Sincerely, the 5th grader named Sara.


AngellinBlue 8 years ago

Beautiful Footage! I would love to see more. Will be going to site. Thank you for sharing.


gyressghyjklklj 7 years ago

i learned a lot


Madison  7 years ago

We are doing an endangered species project in science and i will showing this clip with all the great infrpomation that i got thank u so much so cool!!


HI 7 years ago

HI!


Rebecca Nicol 7 years ago

why doesn't Auckland have Pink dolphins and only the Amazon?


CHRISSY ANN 7 years ago

WHAT IS THE NAME OF THE SPECIE OF THE PINK DOLPHIN? OR IT IS JUST PINK DOLPHIN? THIS GROUP OF PARAGRAPHS WERE VERY USEFULL: THANK YOU!


m.k.tiger 7 years ago

your info was fantastic! it was all exactly what i needed 4 my project.i totally recommend this site. isn't there even 1 predator of the pink dolphin???


sophia**@?$#%&!** 7 years ago

it was pretty good,but do dolphins eat anything else?


marissa 7 years ago

replying to chrissy ann; the species name is Geoffrensis and the genus is Inia,making the scientific name " Inia geoffrensis. if you want to break it down more, look under "taxonamy of the pink dolphin" and you'll get a whole bunch of stuff.


cool 7 years ago

COOL! loved the help it gave me!


cool 7 years ago

COOL! loved the help it gave me!


Anna 7 years ago

AWESOmE!


wanetta 7 years ago

very interesting thanks for sharing


laurentmikhail profile image

laurentmikhail 7 years ago from Miami, FL Author

Thanks for your comments


L3xi 7 years ago

i loved th interesting facts and stuff. i really would like to learn more about them so that i can become a marine biologists. I love water and under water animals. Especially dolphins.They are adorable. Anyway great video.!:):):):):):):):):):):):):)):):)::))::):))


seth 6 years ago

how many are left


person... 6 years ago

these facts are great!!!! i learned soooo much about the pink dolphins! i also got a lot of information from it! you did an exelent job! keep it up!


Stephanie 6 years ago

these facts are great!!!!I LOVE pink dolphins > good job


blablabla  6 years ago

that was very interesting facts! It was pretty cool!!!1


mariana 6 years ago

THIS WAS GREAT U REALLY HELP ME I LEARN A lot I HOPE U DO VIDO ABOUT GARY DOLPHINS I LOVEEEEEEE DOLPHIN MY ROOM IS ABOUT A DOLPHINS WELLL I HOPE I GET A APLUS.YOUR FRIEND THE 5TH GRADER MARIANA


kyla222 6 years ago

omg this is grate were did you get all this stuff


kyla$$$ 6 years ago

omg you are so good at what you do dont stop plz i think i want to be just when i finish high school plz tell me were you got all of your info


peacegirl101 profile image

peacegirl101 6 years ago

Omg I never knew there was such a thing as a pink dolphin?! As you can see I love dolphins ( my profile image ) my fav is the bottle nose dolphins like on the profile image. thx for te info good job whoever wrote this hub LOL. btw, hey how come almost evryone here doesn't hav a hubpages account? LOL bye


rosella 6 years ago

cool.................


peacegirl101 profile image

peacegirl101 6 years ago

very cool....!


kgnature profile image

kgnature 6 years ago from North Carolina

Great Info. Thanks!


emmy 6 years ago

thank u 4 the info:):):):):):):):):):):)!


MagicStarER profile image

MagicStarER 6 years ago from Western Kentucky

You did a wonderful job on this! Congratulations! I LOVE pink dolphins! :)


Kind Regards profile image

Kind Regards 5 years ago from Missouri Ozarks - Table Rock Lake

laurentmikhail, Fascinating! I had no idea. Beautiful photo. Kind Regards


Miranda 5 years ago

Wow!I did not know that much about 1 single dolphin before!!!!!!!!!!!!!! It really helped me on my ELA assigment!


Lulu909 5 years ago

Cool vidoe helped me a lot!


taylor 5 years ago

I LOVE the pink Dolphan


Taylor  5 years ago

the pink dolphan is beautiful


marimccants profile image

marimccants 5 years ago

Amazing hub! I was amazed that dolphins can live in rivers. This pink dolphin is so cute. Very feminine color.


verity 5 years ago

great clip it has helped me on my homework i am going to show my class mates


Skyler Gardner 5 years ago

love them


vanna 4 years ago

heyyyyyyyyyyyyy this is soooooooooooo cool


Kiara 4 years ago

So cool I liked it. Need more ation


Katie 4 years ago

Cool


M.Ramirez 4 years ago

they are funny and ceut


larbercoolcat452 4 years ago

this is cool website


anvita 4 years ago

it helped me with my report


carson the awesomer 3 years ago

hihihihihih hihi


Ingenira profile image

Ingenira 3 years ago

Cool to know this pink dolphins !


pink DOLPHINS MOTHER 3 years ago

pink dolphines and blue dolphines are not the same as there family

purple dolphins pink dolphins and green dolphines

50!!!

50

they EAT 50 KIND OF FISH SWEEETS


coolgirl 2 years ago

it didn't help me with what I was looking for...


hi 10 months ago

how are bottle nosed dolphins the same as pink dolphins

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