Amazon Black Howler vs Cottontop Tamarin

Alouatta nigerrima compared with Saguinus oedipus

Key Differences

• Amazon Black Howler is Least Concern while Cottontop Tamarin is Critically Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	Cottontop Tamarin
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order same	Primates (灵长目)	Primates (灵长目)
Family	Atelidae	Callitrichidae
Genus	Alouatta	Saguinus
Species	Alouatta nigerrima	Saguinus oedipus

Evolutionary Relationship

Amazon Black Howler and Cottontop Tamarin share a common ancestor at the Order level: Primates. (灵长目)

Conservation Status

Amazon Black Howler

LC — Least Concern

Cottontop Tamarin

CR — Critically Endangered

Physical Characteristics

Attribute	Amazon Black Howler	Cottontop Tamarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Cottontop Tamarin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.