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  3. Amazonian Manatee

One of the 4 manatees on WAnimals

Amazonian Manatee (Trichechus inunguis)

Mammals · Sirenia · Trichechidae

Amazonian Manatee

Trichechus inunguis

Vulnerable

At high risk of extinction in the wild over the medium term.

Spotted something wrong?

The Amazonian manatee is the only sirenian that lives exclusively in fresh water and the smallest of the manatees. It is told apart by a white or pink patch on the chest and by the absence of nails on its flippers. It feeds on the aquatic plants of the flooded forests during the high-water season, and when the waters drop it is confined to deep lakes where it sometimes spends months with almost nothing to eat, living off its fat reserves. Hunting and accidental capture in nets have decimated it.

Weight

120 kg – 420 kg

Size

2.5 m – 3 m

Life expectancy

30 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

RainforestFreshwater
12countries4parks3same family

AI-generated images: illustrations, not photographs.

Fun facts

  • distribuciónIt is the only sirenian that lives entirely in fresh water all its life, never entering the sea.
  • It is the only sirenian that never enters the sea: its whole life is spent in the fresh waters of the Amazon basin.
  • During the dry season it can go weeks or months with hardly any food, trapped in lakes where no vegetation is left, surviving thanks to an extremely slow metabolism and the fat built up during the floods.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Rivers, lakes and flooded blackwater and whitewater forests of the Amazon basin
Sexual maturity
3 years
Gestation / incubation
10.8 months
Litter / clutch size
1

Sources consulted: Wikipedia (es): Trichechus inunguis

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Amazonian Manatee — same habitat, park, country, tags or family.

Same taxonomic family
Shares a park
Shares a park
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Shares a park

How to help

The amazonian manatee is classified as vulnerable. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 4 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about amazonian manatee.

Share an experience, a fun fact or a tip for seeing the amazonian manatee.
See full glossary
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See its range on the interactive map→
YasuníEcuador
AmacayacuColombia
AnavilhanasBrazil
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CountriesBrazil
ParksYasuníEcuador
TagsHerbivore
Herbivore
Nocturnal
Solitary
Vulnerable
Rainforest
Freshwater
Mammal

South America11

North America1

Brazil
Colombia
Ecuador
Peru
Argentina
Bolivia
Argentina
Bolivia
Brazil
Colombia
Ecuador
French Guiana
Guyana
Paraguay
Peru
Suriname
Venezuela
Trinidad and Tobago