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  3. Water Opossum

One of the 5 opossums on WAnimals

Mammals · Didelphimorphia · Didelphidae

Water Opossum

Chironectes minimus

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The yapok, also known as the water opossum (Chironectes minimus), is a species of didelphimorph marsupial of the family Didelphidae, the only one in the genus Chironectes, notable for its skill in the water. Despite its wide distribution, it is such an elusive and nocturnal creature that it is rarely seen, which has made scientific study of it extremely difficult for centuries. The yapok also plays an ecological role as a controller of aquatic insect populations, helping to keep the balance of the riverside ecosystems it lives in.

Weight

604 g – 790 g

Size

27 cm – 40 cm

Life expectancy

3 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

RainforestFreshwater
19countries77parks5same family

Fun facts

  • adaptaciónIt is the only marsupial known to live in the water, with webbed hind feet for swimming the rivers and streams of Central and South America.
  • Its pouch closes watertight with a ring of muscle while it dives, so the young travel dry inside a completely submerged mother.
  • The male also has a pouch, which is exceptional among marsupials: he uses it to tuck away and protect his genitals while swimming.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Clean, fast-flowing rivers and streams with wooded banks, from Mexico to Argentina
Sexual maturity
10 months
Gestation / incubation
14 days
Litter / clutch size
4

Sources consulted: Wikipedia (es): Chironectes minimus

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 77.

Related species

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

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

Keep exploring

Based on what we already know about water opossum.

Share an experience, a fun fact or a tip for seeing the water opossum.
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The pins mark the parks where its presence is documented.

See its range on the interactive map→
CorcovadoCosta Rica
TortugueroCosta Rica
Manuel AntonioCosta Rica
MonteverdeCosta Rica
Arenal VolcanoCosta Rica
Volcán BarúPanama
CoibaPanama
DarienPanama
TikalGuatemala
Maya Biosphere ReserveGuatemala
See all 77 parks
Least Concern

Gray Four-Eyed Opossum

Philander opossum

Common OpossumLeast Concern

Common Opossum

Didelphis marsupialis

Least Concern

Mexican Mouse Opossum

Marmosa mexicana

Least Concern

Central American Woolly Opossum

Caluromys derbianus

Least Concern

Southern Naked-tailed Armadillo

Cabassous unicinctus

Southern TamanduaLeast Concern

Southern Tamandua

Tamandua tetradactyla

CountriesBrazil
ParksCorcovadoCosta Rica
TagsCarnivore
Carnivore
Nocturnal
Solitary
Rainforest
Freshwater
Mammal

South America11

North America8

Brazil
Costa Rica
Panama
Peru
Guatemala
Honduras
Argentina
Bolivia
Brazil
Colombia
Ecuador
French Guiana
Guyana
Paraguay
Peru
Suriname
Venezuela
Belize
Costa Rica
Guatemala
Honduras
Mexico
Nicaragua
Panama
Trinidad and Tobago