
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
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.
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
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.
Threats
Habitat loss and degradation from deforestation
Hunting for hide and meat
Climate change affecting water levels
Human encroachment and development
Wetland conversion and drainage
Found in 13 Countries
Community Sightings
Report a sightingNo community sightings yet. Be the first to report!
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