Gray-bellied Night Monkey vs Olive Sparrow

Aotus lemurinus compared with Arremonops rufivirgatus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Olive Sparrow is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Olive Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Passerellidae
Genus	Aotus	Arremonops
Species	Aotus lemurinus	Arremonops rufivirgatus

Evolutionary Relationship

Gray-bellied Night Monkey and Olive Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Olive Sparrow

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Olive Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Olive Sparrow

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.