Gray-bellied Night Monkey vs Water Thick-knee

Aotus lemurinus compared with Burhinus vermiculatus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Water Thick-knee is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Water Thick-knee
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Charadriiformes (Charadriiformes)
Family	Aotidae	Burhinidae
Genus	Aotus	Burhinus
Species	Aotus lemurinus	Burhinus vermiculatus

Evolutionary Relationship

Gray-bellied Night Monkey and Water Thick-knee share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Water Thick-knee

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Water Thick-knee
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.

Water Thick-knee

Habitat

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

Range

Found in Norway.