Japanese Weasel vs Mouse-ear Groundling

Mustela itatsi compared with Caryocolum fraternella

Key Differences

• Japanese Weasel is Near Threatened while Mouse-ear Groundling is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Mouse-ear Groundling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Lepidoptera (Butterflies & Moths)
Family	Mustelidae (Weasels & Otters)	Gelechiidae
Genus	Mustela	Caryocolum
Species	Mustela itatsi	Caryocolum fraternella

Evolutionary Relationship

Japanese Weasel and Mouse-ear Groundling share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Japanese Weasel

NT — Near Threatened

Mouse-ear Groundling

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Mouse-ear Groundling
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.

Mouse-ear Groundling

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.