Japanese Weasel vs Northern, Pribilof, or Alaska fur seal

Mustela itatsi compared with Callorhinus ursinus

Key Differences

• Japanese Weasel is Near Threatened while Northern, Pribilof, or Alaska fur seal is Vulnerable.

Taxonomic Classification

Rank	Japanese Weasel	Northern, Pribilof, or Alaska fur seal
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 same	Carnivora (食肉目)	Carnivora (食肉目)
Family	Mustelidae (Weasels & Otters)	Otariidae
Genus	Mustela	Callorhinus
Species	Mustela itatsi	Callorhinus ursinus

Evolutionary Relationship

Japanese Weasel and Northern, Pribilof, or Alaska fur seal share a common ancestor at the Order level: Carnivora. (食肉目)

Conservation Status

Japanese Weasel

NT — Near Threatened

Northern, Pribilof, or Alaska fur seal

VU — Vulnerable

Physical Characteristics

Attribute	Japanese Weasel	Northern, Pribilof, or Alaska fur seal
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.

Northern, Pribilof, or Alaska fur seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Russia and Ukraine. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.