Fossa vs Ruff

Cryptoprocta ferox compared with Calidris pugnax

Key Differences

• Fossa is Vulnerable while Ruff is Least Concern.

Taxonomic Classification

Rank	Fossa	Ruff
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Carnivora (食肉目)	Charadriiformes (鸻形目)
Family	Eupleridae	Scolopacidae
Genus	Cryptoprocta	Calidris
Species	Cryptoprocta ferox	Calidris pugnax

Evolutionary Relationship

Fossa and Ruff share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Fossa

VU — Vulnerable

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Fossa	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fossa

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ruff

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Ruff

流苏鹬（Calidris pugnax）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛分布且数量丰富，种群稳定，无迫切保护忧虑。