Black-headed Night Monkey vs Cottontop Tamarin

Aotus nigriceps compared with Saguinus oedipus

Key Differences

• Black-headed Night Monkey is Least Concern while Cottontop Tamarin is Critically Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Cottontop Tamarin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Primates (Primates)	Primates (Primates)
Family	Aotidae	Callitrichidae
Genus	Aotus	Saguinus
Species	Aotus nigriceps	Saguinus oedipus

Evolutionary Relationship

Black-headed Night Monkey and Cottontop Tamarin share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Cottontop Tamarin

CR — Critically Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Cottontop Tamarin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

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.

Black-headed Night Monkey

The Black-headed Night Monkey (Aotus nigriceps) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.