Gray-bellied Night Monkey vs Long-tailed Ground Squirrel

Aotus lemurinus compared with Urocitellus undulatus

Key Differences

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

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Long-tailed Ground Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Aotidae	Sciuridae (Squirrels)
Genus	Aotus	Urocitellus
Species	Aotus lemurinus	Urocitellus undulatus

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Long-tailed Ground Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Long-tailed Ground Squirrel
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 Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.