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  3. Oriental Small-clawed Otter

One of the 8 otters on WAnimals

Mammals · Carnivora · Mustelidae

Oriental Small-clawed Otter

Aonyx cinereus

Vulnerable

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

Spotted something wrong?

The Oriental small-clawed otter is the smallest otter in the world and one of the most social: it lives in family groups of up to a dozen individuals that communicate with a wide repertoire of squeaks and whistles. Unlike other otters it does not chase fish by swimming: it feels about with its hands under stones and in the mud for crabs, molluscs and amphibians. Its claws are reduced to tiny spines that do not project beyond the pads, which leaves it extraordinarily dextrous fingers.

Weight

2.7 kg – 5.4 kg

Size

45 cm – 61 cm

Life expectancy

15 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Diurnal

Active mainly during the day.

Social structure

Family group

Lives in small family groups with close bonds.

RainforestOceanFreshwater
16countries56parks28same family

Fun facts

  • GeneralThe smallest otter in the world; it uses its hands with great dexterity to hunt for crabs.
  • It uses its hands as though they were a primate's: it feels under stones and in the mud with a sensitivity of touch that makes up for the poor visibility of murky water.
  • Its popularity in social media videos has driven up the illegal trade in cubs as pets in South-East Asia, one of the reasons for its inclusion in Appendix I of CITES in 2019.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Streams, mangroves, rice fields and shallow wetlands of South and South-East Asia
Size at birth
Born blind and helpless; it opens its eyes at around five weeks
Sexual maturity
2 years
Gestation / incubation
2.1 months
Litter / clutch size
1.42 (average)

Sources consulted: Wikipedia (es): Aonyx cinereus

Where to find it

Best time: All year round in southern and South-East Asia, by day; it moves in very noisy family groups through rice paddies, mangroves and streams.

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 56.

Related species

Other species in the catalogue with the most in common with Oriental Small-clawed Otter — same habitat, park, country, tags or family.

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

How to help

The oriental small-clawed otter 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 10 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about oriental small-clawed otter.

Share an experience, a fun fact or a tip for seeing the oriental small-clawed otter.
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The pins mark the parks where its presence is documented.

See its range on the interactive map→
Chitwan National ParkNepal
KazirangaIndia
SundarbansIndia
PeriyarIndia
Gunung LeuserIndonesia
Way KambasIndonesia
Khao YaiThailand
Phong Nha-Ke BangVietnam
Gunung MuluMalaysia
KinabaluMalaysia
See all 56 parks
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Smooth-coated Otter

Lutrogale perspicillata

Yellow-throated MartenLeast Concern

Yellow-throated Marten

Martes flavigula

Vulnerable

Western Tarsier

Tarsius bancanus

LeopardVulnerable

Leopard

Panthera pardus

King CobraVulnerable

King Cobra

Ophiophagus hannah

Clouded LeopardVulnerable

Clouded Leopard

Neofelis nebulosa

CountriesIndia
ParksChitwan National ParkNepal
TagsCarnivore
Carnivore
Diurnal
Family group
Vulnerable
Rainforest
Ocean
Freshwater
Mammal
India
Thailand
Malaysia
Vietnam
Indonesia
Cambodia
Bangladesh
Brunei
Cambodia
China
India
Indonesia
Laos
Malaysia
Myanmar
Nepal
Philippines
Singapore
Taiwan
Thailand
Timor-Leste
Vietnam