Black-shouldered Opossum vs Ruff

Caluromysiops irrupta compared with Calidris pugnax

Taxonomic Classification

Rank	Black-shouldered Opossum	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Didelphimorphia (Didelphimorphia)	Charadriiformes (Charadriiformes)
Family	Didelphidae	Scolopacidae
Genus	Caluromysiops	Calidris
Species	Caluromysiops irrupta	Calidris pugnax

Evolutionary Relationship

Black-shouldered Opossum and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Black-shouldered Opossum	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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).

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Ruff

Ruff (Calidris pugnax) 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.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia