Gray-bellied Night Monkey vs Ruby-Crowned Kinglet

Aotus lemurinus compared with Regulus calendula

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Ruby-Crowned Kinglet is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Ruby-Crowned Kinglet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Regulidae
Genus	Aotus	Regulus
Species	Aotus lemurinus	Regulus calendula

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Ruby-Crowned Kinglet

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Ruby-Crowned Kinglet
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.

Ruby-Crowned Kinglet

Habitat

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

Range

Distributed across Norway and United States.