Black Caiman
VU

Black Caiman

Melanosuchus niger

Unknown

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

Overview

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.

Threat summary

Habitat

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.

FRESHWATER· majorTERRESTRIAL· major

Frequently asked questions

Why is Black Caiman classified as Vulnerable?
Black Caiman is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. 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.
Where does Black Caiman live?
Black Caiman occurs in Bolivia, Brazil, Canada, Colombia, Ecuador, and France (plus 7 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Black Caiman?
The main threats to Black Caiman are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.