Gray-bellied Night Monkey vs Hazel-fronted Pygmy-Tyrant

Aotus lemurinus compared with Pseudotriccus simplex

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Hazel-fronted Pygmy-Tyrant is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Hazel-fronted Pygmy-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Tyrannidae
Genus	Aotus	Pseudotriccus
Species	Aotus lemurinus	Pseudotriccus simplex

Evolutionary Relationship

Gray-bellied Night Monkey and Hazel-fronted Pygmy-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Hazel-fronted Pygmy-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Hazel-fronted Pygmy-Tyrant
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.

Hazel-fronted Pygmy-Tyrant

Habitat

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

Range

Found in Norway.