Gray-bellied Night Monkey vs Long-tailed Weasel

Aotus lemurinus compared with Mustela frenata

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Long-tailed Weasel is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Long-tailed Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Carnivora (Carnivorans)
Family	Aotidae	Mustelidae (Weasels & Otters)
Genus	Aotus	Mustela
Species	Aotus lemurinus	Mustela frenata

Evolutionary Relationship

Gray-bellied Night Monkey and Long-tailed Weasel share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Long-tailed Weasel

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Long-tailed Weasel
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.

Long-tailed Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, United States, and Venezuela.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela