Japanese Weasel vs Ryukyu Mouse

Mustela itatsi compared with Mus caroli

Key Differences

• Japanese Weasel is Near Threatened while Ryukyu Mouse is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Ryukyu Mouse
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	Mus (House Mice)
Species	Mustela itatsi	Mus caroli

Evolutionary Relationship

Japanese Weasel and Ryukyu Mouse share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Japanese Weasel

NT — Near Threatened

Ryukyu Mouse

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Ryukyu Mouse
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.

Ryukyu Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan.