Black Caiman
VUVulnerable

Black Caiman

Melanosuchus niger

The black caiman is a crocodilian reptile endemic to South America. With a maximum length of around 5 to 6.

13

Countries

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Black_caiman

01Classification

Taxonomy & Classification

Kingdom

Animalia

Phylum

Chordata

Class

Crocodylia

Family

Alligatoridae

Genus

Melanosuchus

Black Caiman belongs to the family Alligatoridae, order unknown, within the Crocodylia class.

02Description

Species Profile

The black caiman is a crocodilian reptile endemic to South America. With a maximum length of around 5 to 6.5 m and a mass of over 450 kg (1,000 lb), it is the largest living species of the family Alligatoridae, and the third-largest crocodilian in the Neotropical realm. True to its common and scientific names, the black caiman has a dark greenish-black coloration as an adult. In some individuals, the pigmentation can appear almost jet-black. It has grey to brown banding on the lower jaw; juveniles have a more vibrant coloration compared to adults, with prominent white-pale yellow banding on the flanks that remains present well into adulthood. The banding on young helps with camouflage by breaking up their body outline, on land or in water, in an effort to avoid predation. The morphology...

The Black Caiman faces significant pressure from habitat loss due to deforestation and wetland conversion throughout the Amazon basin. Historical overhunting for its valuable hide severely depleted populations, and while some recovery has occurred, the species remains vulnerable to continued hunting pressure and climate change impacts on aquatic ecosystems.

Key Facts

IUCN StatusVulnerable (VU)
GroupOther invertebrates
03Habitat

Habitat & Distribution

Black Caimans inhabit slow-moving rivers, oxbow lakes, flooded forests, and wetlands throughout the Amazon basin. They prefer deeper waters with abundant fish populations and require both aquatic areas for hunting and terrestrial sites with suitable vegetation for nesting.

FRESHWATERMajorTERRESTRIALMajor
04Threats

Threats

Habitat loss and degradation from deforestation

HighOngoing

Hunting for hide and meat

HighOngoing

Climate change affecting water levels

MediumOngoing

Human encroachment and development

MediumOngoing

Wetland conversion and drainage

MediumOngoing
Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). Black Caiman (Melanosuchus niger). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/black-caiman

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