Japanese Weasel vs Oahu Elepaio

Mustela itatsi compared with Chasiempis ibidis

Key Differences

• Japanese Weasel is Near Threatened while Oahu Elepaio is Endangered.

Taxonomic Classification

Rank	Japanese Weasel	Oahu Elepaio
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Mustelidae (Weasels & Otters)	Monarchidae
Genus	Mustela	Chasiempis
Species	Mustela itatsi	Chasiempis ibidis

Evolutionary Relationship

Japanese Weasel and Oahu Elepaio share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Japanese Weasel

NT — Near Threatened

Oahu Elepaio

EN — Endangered

Physical Characteristics

Attribute	Japanese Weasel	Oahu Elepaio
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.

Oahu Elepaio

Habitat

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

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.