Fauna
Reptile

Dwarf Crocodile

Osteolaemus tetraspis

Also known as African Dwarf Crocodile, West African Dwarf Crocodile, Broad-snouted Crocodile, Bony Crocodile

Dwarf crocodiles spend daylight hours sequestered inside excavated riverbank burrows or hollow submerged tree roots, emerging at night to patrol slow-moving forest streams. Heavily reinforced with bony osteoderms across their back, neck, and belly, they rely on armor to protect themselves from larger apex predators while foraging on land and water. Females construct raised mounds of decaying vegetation to incubate their small clutches, actively guarding the nest and helping hatchlings emerge when called by their high-pitched chirps.

ReptileNocturnalCarnivore
Dwarf Crocodile reference1 / 4
(c) Eric de Redelijkheid, some rights reserved (CC BY-SA) · cc-by-sa
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VulnerableConservation statusIUCN Red List categoriesLCNTVUENCREWEXVulnerableRed List categories, explained →
Key facts
Diet & preyFreshwater Crabs, Catfish, Frogs
Predators
  • Leopard
  • Nile Crocodile
  • African Rock Python
ThreatsUnsustainable bushmeat hunting, habitat loss, and wetland destruction from logging and agriculture
HabitatsTropical lowland rainforests, swamps, and slow-moving forest rivers
Life span50–75 years
Classification
  1. FamilyCrocodylidae
  2. GenusOsteolaemus
  3. SpeciesOsteolaemus tetraspis
Range & activity
Native
Safe observation
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Can inflict a crushing defensive bite if cornered; maintain a safe distance along forest waterways.
Why it is dangerous
Crushing jaw pressure and backward-curving teeth can cause bone fractures and severe lacerations prone to deep infection.
How to recognize a risky encounter
Look for a short, broad snout, dense protective back scales, and an adult body length under two meters.
What to do
Maintain several meters of clearance, back away steadily if hissed at, and never block access to the water.
What to notice
Identifiable by its dark coloration, stubby broad head, and heavily armored throat and belly scales.
Support conservation
Keep boat traffic slow in shallow tributaries to protect burrow systems and report illegal commercial capture.
Responsible observation
  • Night Spotting: Scan swamp margins after dark with a flashlight to detect their intense reddish eyeshine.
  • Riverbank Caution: Avoid stepping near burrow entrances or submerged logs where adults rest during the day.
Related species
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Found in Collections

Ecosystem chain

Wetland Territory

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