Japanese Weasel vs Oriental House Rat

Mustela itatsi compared with Rattus tanezumi

Key Differences

• Japanese Weasel is Near Threatened while Oriental House Rat is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Oriental House Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Rodentia (Rodents)
Family	Mustelidae (Weasels & Otters)	Muridae (Mice & Rats)
Genus	Mustela	Rattus
Species	Mustela itatsi	Rattus tanezumi

Evolutionary Relationship

Japanese Weasel and Oriental House Rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Japanese Weasel

NT — Near Threatened

Oriental House Rat

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Oriental House Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Oriental House Rat

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Widely distributed across Africa (Eswatini, Lesotho, South Africa), Asia (Philippines, Taiwan), and Oceania and the Pacific (Kiribati).