Black-eared Red-backed Vole vs Gray-bellied Night Monkey

Eothenomys olitor compared with Aotus lemurinus

Key Differences

• Black-eared Red-backed Vole is Least Concern while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Black-eared Red-backed Vole	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Primates (Primates)
Family	Cricetidae	Aotidae
Genus	Eothenomys	Aotus
Species	Eothenomys olitor	Aotus lemurinus

Evolutionary Relationship

Black-eared Red-backed Vole and Gray-bellied Night Monkey share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Black-eared Red-backed Vole

LC — Least Concern

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Black-eared Red-backed Vole	Gray-bellied Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-eared Red-backed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-eared Red-backed Vole

The Black-eared Red-backed Vole (Eothenomys olitor) is a species in the genus Eothenomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.