Japanese Weasel vs King/Common Eider

Mustela itatsi compared with Somateria spectabilis

Key Differences

• Japanese Weasel is Near Threatened while King/Common Eider is Not Evaluated.

Taxonomic Classification

Rank	Japanese Weasel	King/Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Mustelidae (Weasels & Otters)	Anatidae
Genus	Mustela	Somateria
Species	Mustela itatsi	Somateria spectabilis

Evolutionary Relationship

Japanese Weasel and King/Common Eider share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Japanese Weasel

NT — Near Threatened

King/Common Eider

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese Weasel	King/Common Eider
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.

King/Common Eider

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.