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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

JEAN-MICHEL COUSTEAU: OCEAN ADVENTURES | Pink Dolphins

Comments

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  • profile image

    hi 19 months ago

    how are bottle nosed dolphins the same as pink dolphins

  • profile image

    coolgirl 2 years ago

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

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    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

    50!!!

    50

    they EAT 50 KIND OF FISH SWEEETS

  • Ingenira profile image

    Ingenira 4 years ago

    Cool to know this pink dolphins !

  • profile image

    carson the awesomer 4 years ago

    hihihihihih hihi

  • profile image

    anvita 5 years ago

    it helped me with my report

  • profile image

    larbercoolcat452 5 years ago

    this is cool website

  • profile image

    M.Ramirez 5 years ago

    they are funny and ceut

  • profile image

    Katie 5 years ago

    Cool

  • profile image

    Kiara 5 years ago

    So cool I liked it. Need more ation

  • profile image

    vanna 5 years ago

    heyyyyyyyyyyyyy this is soooooooooooo cool

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    Skyler Gardner 5 years ago

    love them

  • profile image

    verity 5 years ago

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

  • marimccants profile image

    marimccants 6 years ago

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

  • profile image

    Taylor  6 years ago

    the pink dolphan is beautiful

  • profile image

    taylor 6 years ago

    I LOVE the pink Dolphan

  • profile image

    Lulu909 6 years ago

    Cool vidoe helped me a lot!

  • 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!

  • 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

  • MagicStarER profile image

    MagicStarER 6 years ago from Western Kentucky

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

  • profile image

    emmy 6 years ago

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

  • kgnature profile image

    kgnature 7 years ago from North Carolina

    Great Info. Thanks!

  • peacegirl101 profile image

    peacegirl101 7 years ago

    very cool....!

  • profile image

    rosella 7 years ago

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

  • peacegirl101 profile image

    peacegirl101 7 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

    kyla$$$ 7 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

  • profile image

    kyla222 7 years ago

    omg this is grate were did you get all this stuff

  • profile image

    mariana 7 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

  • profile image

    blablabla  7 years ago

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

  • profile image

    Stephanie 7 years ago

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

  • 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

    seth 7 years ago

    how many are left

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

  • laurentmikhail profile image
    Author

    Laurent Mikhail 7 years ago from Miami, FL

    Thanks for your comments

  • profile image

    wanetta 7 years ago

    very interesting thanks for sharing

  • profile image

    Anna 7 years ago

    AWESOmE!

  • 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

    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

    sophia**@?$#%&!** 7 years ago

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

  • 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

    CHRISSY ANN 8 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!

  • profile image

    Rebecca Nicol 8 years ago

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

  • profile image

    HI 8 years ago

    HI!

  • 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

    gyressghyjklklj 8 years ago

    i learned a lot

  • 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

    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

    Karen  9 years ago

    Pink dolphins live in Outer Banks, North Carolina also.