Gray-bellied Night Monkey vs Great Thick-knee

Aotus lemurinus compared with Esacus recurvirostris

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Great Thick-knee is Near Threatened.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Great 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	Esacus
Species	Aotus lemurinus	Esacus recurvirostris

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Great Thick-knee

NT — Near Threatened

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Great 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.

Great Thick-knee

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.