Fossa vs Ring-necked Duck

Cryptoprocta ferox compared with Aythya collaris

Key Differences

• Fossa is Vulnerable while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Fossa	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Eupleridae	Anatidae
Genus	Cryptoprocta	Aythya
Species	Cryptoprocta ferox	Aythya collaris

Evolutionary Relationship

Fossa and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fossa

VU — Vulnerable

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Fossa	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fossa

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ring-necked Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Ring-necked Duck

Ring-necked Duck (Aythya collaris) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.