Gray-bellied Night Monkey vs Silver-backed Needletail

Aotus lemurinus compared with Hirundapus cochinchinensis

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Silver-backed Needletail is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Silver-backed Needletail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Apodiformes (Apodiformes)
Family	Aotidae	Apodidae
Genus	Aotus	Hirundapus
Species	Aotus lemurinus	Hirundapus cochinchinensis

Evolutionary Relationship

Gray-bellied Night Monkey and Silver-backed Needletail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Silver-backed Needletail

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Silver-backed Needletail
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.

Silver-backed Needletail

Habitat

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

Range

Found in Norway.