Deer Mouse vs Japanese Weasel

Peromyscus maniculatus compared with Mustela itatsi

Key Differences

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

Taxonomic Classification

Rank	Deer Mouse	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Carnivora (Carnivorans)
Family	Cricetidae	Mustelidae (Weasels & Otters)
Genus	Peromyscus	Mustela
Species	Peromyscus maniculatus	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Deer Mouse

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Deer Mouse	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Deer Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

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.