Gray-bellied Night Monkey vs Japanese Weasel

Aotus lemurinus compared with Mustela itatsi

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Japanese Weasel
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Primates (灵长目)	Carnivora (食肉目)
Family	Aotidae	Mustelidae (Weasels & Otters)
Genus	Aotus	Mustela
Species	Aotus lemurinus	Mustela itatsi

Evolutionary Relationship

Gray-bellied Night Monkey and Japanese Weasel share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Japanese Weasel
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.

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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