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July 27, 2026Sources cited
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Science & Nature • Marine Mammal

Manatee

Manatees are large, slow-moving aquatic mammals in the genus Trichechus, sometimes called sea cows.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Manatees are large, slow-moving aquatic mammals in the genus Trichechus, also known as sea cows. The three living species are the Amazonian manatee, West Indian manatee, and West African manatee. They are herbivores inhabiting warm shallow waters, rivers, and estuaries in the Americas and West Africa.

Taxonomy and species

Manatees are sirenians in the family Trichechidae. Living species include the Amazonian manatee, West Indian manatee, and West African manatee, all placed in the genus Trichechus.

Description and behaviour

Manatees are large, slow aquatic mammals with flippers and a flat, paddle-shaped tail. They spend much of the day grazing and are adapted to life in warm water.

Habitat and range

Manatees live in shallow rivers, estuaries, bays, canals, and coastal waters. Their ranges include tropical and subtropical parts of the Americas and West Africa.

Diet and feeding

Manatees are primarily herbivorous and feed on aquatic plants. Sources describe them as spending many hours each day eating and consuming large quantities of vegetation.

Conservation

Manatees face threats such as habitat loss, hunting in some regions, boat strikes, and environmental changes. Conservation assessments classify the living species as vulnerable or otherwise at elevated extinction risk.

Key facts

  • Manatees are aquatic mammals in the family Trichechidae and the genus Trichechus.
  • The three living species are the Amazonian manatee, West Indian manatee, and West African manatee.
  • They are herbivores that graze on aquatic plants, including seagrasses and other vegetation.
  • Manatees inhabit warm shallow waters, rivers, estuaries, and coastal areas in the Americas and West Africa.
  • Conservation status varies by species, with all three considered at risk by major conservation sources.
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Canadian context

Manatees are not native to Canada, but Canadian readers may encounter them in aquariums, zoos, conservation education, and travel to warm coastal regions where they live.

Frequently asked questions

What is a manatee?
A manatee is a large aquatic mammal in the genus Trichechus, commonly known as a sea cow.
How many species of manatee are there?
There are three living species: the Amazonian manatee, West Indian manatee, and West African manatee.
What do manatees eat?
Manatees are herbivores that feed mainly on aquatic plants such as seagrasses and other freshwater or marine vegetation.
Where do manatees live?
They live in warm shallow waters, including rivers, estuaries, bays, and coastal areas in the Americas and West Africa.
Are manatees endangered?
Conservation status varies by species, but major sources describe them as at risk, with all three living species listed as vulnerable or under elevated threat.

References

  1. Encyclopaedia Britannicahttps://www.britannica.com/animal/manatee
    Supports: Manatee taxonomy, genus Trichechus, and general description.
  2. PBS Naturehttps://www.pbs.org/wnet/nature/blog/manatee-fact-sheet/
    Supports: Family Trichechidae and the three accepted living species.
  3. National Geographichttps://www.nationalgeographic.com/animals/mammals/facts/manatees
    Supports: General size, diet, lifespan, and habitat overview.
  4. Smithsonian Magazinehttps://www.smithsonianmag.com/science-nature/14-fun-facts-about-manatees-180950308/
    Supports: Conservation status context for manatees and related dugongs.
  5. Save the Manatee Clubhttps://savethemanatee.org/manatees/manatee-facts/
    Supports: Habitat, feeding, physical characteristics, and range details.
  6. Natural History Museumhttps://www.nhm.ac.uk/discover/what-is-a-sea-cow.html
    Supports: Species list, diet, lifespan, and conservation notes.