Handley s Slender Opossum vs Ruff

Marmosops handleyi compared with Calidris pugnax

Key Differences

• Handley s Slender Opossum is Critically Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Handley s Slender 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	Marmosops	Calidris
Species	Marmosops handleyi	Calidris pugnax

Evolutionary Relationship

Handley s Slender Opossum and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Handley s Slender Opossum

CR — Critically Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Handley s Slender Opossum	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Handley s Slender Opossum

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and montane grasslands and shrublands, among 4 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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

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