Gray-bellied Night Monkey vs Sibree’s Dwarf Lemur

Aotus lemurinus compared with Cheirogaleus sibreei

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Sibree’s Dwarf Lemur is Critically Endangered.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Sibree’s Dwarf Lemur
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	Cheirogaleidae
Genus	Aotus	Cheirogaleus
Species	Aotus lemurinus	Cheirogaleus sibreei

Evolutionary Relationship

Gray-bellied Night Monkey and Sibree’s Dwarf Lemur share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Sibree’s Dwarf Lemur

CR — Critically Endangered

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Sibree’s Dwarf Lemur
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.

Sibree’s Dwarf Lemur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.