Gray-bellied Night Monkey vs Laysan Duck

Aotus lemurinus compared with Anas laysanensis

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Laysan Duck
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mamalia)	Aves (burung)
Order	Primates (Primata)	Anseriformes (Anseriformes)
Family	Aotidae	Anatidae
Genus	Aotus	Anas
Species	Aotus lemurinus	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Laysan Duck
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.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.