Amazon Black Howler vs Cuatro Ojos

Alouatta nigerrima compared with Aotus azarae

Taxonomic Classification

Rank	Amazon Black Howler	Cuatro Ojos
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order same	Primates (Primates)	Primates (Primates)
Family	Atelidae	Aotidae
Genus	Alouatta	Aotus
Species	Alouatta nigerrima	Aotus azarae

Evolutionary Relationship

Amazon Black Howler and Cuatro Ojos share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Amazon Black Howler

LC — Least Concern

Cuatro Ojos

LC — Least Concern

Physical Characteristics

Attribute	Amazon Black Howler	Cuatro Ojos
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Cuatro Ojos

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Cuatro Ojos

The Azara's night monkey (Aotus azarae) 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.