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A stocky dark mongoose that lives beside water.
Cracking crabs and frogs along the shoreline.
The marsh mongoose (Atilax paludinosus) is a stocky, dark, water-loving mongoose of the family Herpestidae. It is Africa's most aquatic mongoose, built for life along rivers, lakes and swamps.
Its wet habitat makes it unique among mongooses: it wades, swims and hunts along shorelines, cracking crabs and catching frogs with specialised skill. Muddy banks and reed beds are its kingdom.
Everything about the marsh mongoose is built for the water's edge. Its dark, water-repellent coat, slightly webbed feet and habit of hunting along shores give it an entire ecosystem of prey to itself — crabs, frogs, fish and aquatic insects.
Its jaws are powerful enough to crack open crab shells and snail cases, a specialist skill that few competitors share. For a mongoose, the shoreline is a pantry, and the marsh mongoose is its most expert customer.
An omnivore with an aquatic bent, the marsh mongoose feeds mainly on crabs, frogs and fish, with insects, small mammals and plant matter added.
It hunts along shorelines and in shallow water, probing mud and vegetation with its sensitive nose.
The Marsh Mongoose is found across parts of Africa, with its main populations in eastern and, where applicable, southern regions. Its preferred habitat is Wetlands & riversides.
It favours wetlands & riversides, where cover, food and shelter are in balance. Protected national parks across East Africa help maintain stable populations.
In Tanzania, marsh mongooses are found around lakes, rivers and swamps, including Nyerere and Lake Manyara.
The marsh mongoose can be seen in suitable wetland habitat in Tanzania. The table below gives a realistic guide to habitat suitability.
| Destination | Habitat suitability | Sightings |
|---|---|---|
| Nyerere | Good — rivers and swamps | Possible |
| Lake Manyara | Suitable shoreline | Possible |
| Wetlands (Uganda) | Extensive habitat | Possible |
Marsh mongooses are present in suitable wetland habitat, but they are secretive and largely nocturnal, so individual sightings are never guaranteed.
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Swims and wades along shorelines; Africa's most water-adapted mongoose.
Usually alone or in pairs; territorial along linear waterways.
Active by day and night near water.
Scent marking and vocal calls.
Probes mud and vegetation for hidden prey.
Marsh mongooses are often solitary, but pairs may share a territory. Young are raised in a den in the riverbank and learn to hunt crabs, frogs and fish under their mother's guidance.
Every feature of the Marsh Mongoose is finely tuned for life in wetlands & riversides.
Vital statistics: body length approximately 44-62 cm long + tail, weight 2-4 kg, lifespan typically around 8-10 yrs in the wild (longer in captivity).
How does the Marsh Mongoose compare with its fellow African carnivores?
| Feature | Marsh Mongoose | White-tailed Mongoose | Banded Mongoose |
|---|---|---|---|
| Scientific name | Atilax paludinosus | Ichneumia albicauda | Mungos mungo |
| Weight | 2-4 kg | 2-4.5 kg | 1.5-2.25 kg |
| Size | 44-62 cm long + tail | 50-60 cm long + tail | 30-45 cm long + tail |
| Foraging | Shoreline probing, crab cracking | Ground forager | Ground forager |
| Forepaws | Highly sensitive, mud-probing | Standard | Standard |
| Lifespan | 8-10 yrs (wild) | 10-15 yrs (wild) | 10-12 yrs (wild) |
| Diet | Crabs, frogs, fish, insects, small vertebrates | Insects, small vertebrates, fruit | Insects, small vertebrates, fruit |
| Conservation | Least Concern | Least Concern | Least Concern |
Compare the Marsh Mongoose with Africa's other carnivores on their own species pages:
For such a marsh mongoose, the savanna holds many dangers. It is important to distinguish between predators of adults and the greater threats facing young animals.
Crocodiles and pythons threaten marsh mongooses near water.
Eagles, owls and larger carnivores may also take them.
Least Concern does not mean the species has no conservation challenges. It means the species is not currently assessed in a higher IUCN threat category at the global level.
Widespread across sub-Saharan wetlands, the marsh mongoose is listed as Least Concern, though wetland drainage threatens local populations.
Crabs are its favourite food — cracked with powerful jaws.
It is Africa's most water-loving mongoose.
Its slightly webbed feet help it move on muddy banks.
Frogs are caught with a quick, sure pounce.
Watch a marsh mongoose work a shoreline and you'll see a true specialist: every ripple, every flipped stone, every skittering crab is read and answered with practised skill.
A closer look at the Marsh Mongoose in its natural East African habitat — its striking appearance, habitat and behaviour are best appreciated up close.
No — the Marsh Mongoose is currently listed as Least Concern on the IUCN Red List, though local populations can still face habitat pressure.
Crabs, frogs, fish, insects and small vertebrates — an aquatic forager along shorelines.
Across wetlands & riversides in Sub-Saharan Africa, including parts of Tanzania.
Yes — in suitable habitat such as Nyerere & Lake Manyara, Tanzania; Uganda, although sightings vary by species and season.
Approximately 44-62 cm long + tail in body length and 2-4 kg in weight.
It is quick over short distances and agile in water, but relies on stealth and shoreline probing rather than speed.
Activity patterns vary by species — some are active by day, others almost entirely at night. Active by day and night near water.
Atilax paludinosus — a member of the Herpestidae family.
Key threats include habitat loss and local habitat changes, alongside natural predation.
Usually seen alone or in pairs.
