Common Eider vs Fossa

Somateria mollissima compared with Cryptoprocta ferox

Key Differences

• Common Eider is Near Threatened while Fossa is Vulnerable.

Taxonomic Classification

Rank	Common Eider	Fossa
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Carnivora (Carnivorans)
Family	Anatidae	Eupleridae
Genus	Somateria	Cryptoprocta
Species	Somateria mollissima	Cryptoprocta ferox

Evolutionary Relationship

Common Eider and Fossa share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Eider

NT — Near Threatened

Fossa

VU — Vulnerable

Physical Characteristics

Attribute	Common Eider	Fossa
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Eider

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Fossa

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Eider

Common Eider (Somateria mollissima) 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.