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Pink Dolphin

Updated on February 26, 2016

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



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    • profile image

      Karen  8 years ago

      Pink dolphins live in Outer Banks, North Carolina also.

    • profile image

      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.

    • profile image

      AngellinBlue 8 years ago

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

    • profile image

      gyressghyjklklj 8 years ago

      i learned a lot

    • profile image

      Madison  8 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!!

    • profile image

      HI 8 years ago


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      Rebecca Nicol 8 years ago

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

    • profile image

      CHRISSY ANN 7 years ago


    • profile image

      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???

    • profile image

      sophia**@?$#%&!** 7 years ago

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

    • profile image

      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.

    • profile image

      cool 7 years ago

      COOL! loved the help it gave me!

    • profile image

      cool 7 years ago

      COOL! loved the help it gave me!

    • profile image

      Anna 7 years ago


    • profile image

      wanetta 7 years ago

      very interesting thanks for sharing

    • laurentmikhail profile image

      laurentmikhail 7 years ago from Miami, FL

      Thanks for your comments

    • profile image

      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.!:):):):):):):):):):):):):)):):)::))::):))

    • profile image

      seth 7 years ago

      how many are left

    • profile image

      person... 7 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!

    • profile image

      Stephanie 7 years ago

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

    • profile image

      blablabla  7 years ago

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

    • profile image

      mariana 7 years ago


    • profile image

      kyla222 6 years ago

      omg this is grate were did you get all this stuff

    • profile image

      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

    • profile image

      rosella 6 years ago


    • peacegirl101 profile image

      peacegirl101 6 years ago

      very cool....!

    • kgnature profile image

      kgnature 6 years ago from North Carolina

      Great Info. Thanks!

    • profile image

      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 6 years ago from Missouri Ozarks - Table Rock Lake

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

    • profile image

      Miranda 6 years ago

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

    • profile image

      Lulu909 6 years ago

      Cool vidoe helped me a lot!

    • profile image

      taylor 6 years ago

      I LOVE the pink Dolphan

    • profile image

      Taylor  6 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.

    • profile image

      verity 5 years ago

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

    • profile image

      Skyler Gardner 5 years ago

      love them

    • profile image

      vanna 5 years ago

      heyyyyyyyyyyyyy this is soooooooooooo cool

    • profile image

      Kiara 5 years ago

      So cool I liked it. Need more ation

    • profile image

      Katie 5 years ago


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      M.Ramirez 5 years ago

      they are funny and ceut

    • profile image

      larbercoolcat452 5 years ago

      this is cool website

    • profile image

      anvita 5 years ago

      it helped me with my report

    • profile image

      carson the awesomer 4 years ago

      hihihihihih hihi

    • Ingenira profile image

      Ingenira 4 years ago

      Cool to know this pink dolphins !

    • profile image

      pink DOLPHINS MOTHER 4 years ago

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

      purple dolphins pink dolphins and green dolphines




    • profile image

      coolgirl 2 years ago

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

    • profile image

      hi 16 months ago

      how are bottle nosed dolphins the same as pink dolphins

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