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Amazon River Dolphin

Papercraft kit : The Amazon River Dolphin, easily distinguished by its pink-colored body.

Rare Animals of the World

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Rare animal of the world, The Amazon series No.2. The Amazon River Dolphin, the largest of the five freshwater dolphin sub-species of the world, is a rare animal. This species, considered to be the most primitive of the dolphin family, is classified as “Data Deficient [DD]” in the Red List.

Assembly instructions for the Paper Craft Model of the Amazon River Dolphin, easily distinguished by its pink body, may be downloaded from this website. A photo image of a completed model may be downloaded as well.

Download - Parts sheet & InstructionsThis data was released in January, 2005.

Amazon River Dolphin - Animal Guide

  • Amazon River Dolphin or Boto - Iniidae Family
  • Inia geoffrensis
  • Total body length: Male: 2.8m (approximately 9.2 ft.) Female: 2.3m (approximately 7.5 ft.) / Weight: Male: 160kg (approximately 352 lb.) Female: 100kg (approximately 220 lb.)
  • 2016 Edition of the RED LIST categories : Data Deficient [DD]

The Amazon River Dolphin is the largest of the existing five freshwater dolphin species which, unlike regular ocean dolphins, inhabit freshwater rivers.
The dolphin calves have a dark grayish body until they grow to maturity, when the belly turns pink and the back remains gray. Occasionally, some of the animals’ entire bodies are transformed into a vivid pink color. Due to the unique coloration, the species is also known as the “Pink Dolphin”. On its head there is a rump, called the melon, which is filled with fat and can be freely inflated. Unlike other sub-species of dolphin, it is also characterized by its humped dorsal ridge on the back instead of an actual fin.
Because freshwater dolphins generally have poor vision, they move by echolocation, a system of sensory perception using their own high frequency sounds, which enable the creature to navigate obstacles.
The Amazon River Dolphin also has a long, wide beak lined with strong teeth, and it feeds mainly on a variety of fish and crabs. Its method is to first scoop up mud in its beak from the river bottom along with bottom-dwelling prey, and then shake out the mud.
After a gestation period of ten to eleven months, the Amazon River Dolphin bears a single calf between May and July, the Amazon’s rainy season. A calf can reach 80 cm in length (approximately 31.5 in.).
The species usually has a solitary life and is only rarely seen in a group of three to ten dolphins.


The basins of the Amazon River running through Brazil, Venezuela, and Colombia.

About Red List

The Red List is the material prepared by IUCN (International Union for Conservation of Nature) classifying various threatened wild animals of the world and reporting their present habitat status.

The List evaluates the extinction risk level of each individual species from a biological viewpoint, but it possesses no legal power to enforce regulations concerning threatened species. The Red List is broadly employed as fundamental information in advancing the preservation of threatened wild animals.

Referring to the original Red List, the Environment Agency of Japan has compiled the Japanese edition of the List listing threatened taxa inhabiting Japan.

2016 Edition of the RED LIST CATEGORIES and classified as follows:
Extinct EX No known individuals remaining.
Extinct in the Wild EW Known only to survive in captivity, or as a naturalized population outside its historic range.
Critically Endangered CR Extremely high risk of extinction in the wild.
Endangered EN High risk of extinction in the wild.
Vulnerable VU High risk of endangerment in the wild.
Near Threatened NT Likely to become endangered in the near future.
Least Concern LC Lowest risk. Does not qualify for a more at-risk category. Widespread and abundant taxa are included in this category.
Data Deficient DD Not enough data to make an assessment of its risk of extinction.
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