Fossa vs least weasel

Cryptoprocta ferox compared with Mustela nivalis

Key Differences

• Fossa is Vulnerable while least weasel is Near Threatened.

Taxonomic Classification

Rank	Fossa	least weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Carnivora (Carnivorans)	Carnivora (Carnivorans)
Family	Eupleridae	Mustelidae (Weasels & Otters)
Genus	Cryptoprocta	Mustela
Species	Cryptoprocta ferox	Mustela nivalis

Evolutionary Relationship

Fossa and least weasel share a common ancestor at the Order level: Carnivora. (Carnivorans)

Conservation Status

Fossa

VU — Vulnerable

least weasel

NT — Near Threatened

Physical Characteristics

Attribute	Fossa	least weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fossa

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

least weasel

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 4 distinct biome types spanning the Australasia and Oceanian and Palearctic realms.

Range

Widely distributed across Africa (Sao Tome and Principe), Asia (Cyprus), Europe (11 countries), and Oceania and the Pacific (New Zealand). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

least weasel

least weasel (Mustela nivalis) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.