Polynesian rat vs Simons’s Mouse Opossum

Rattus exulans compared with Marmosa simonsi

Key Differences

• Polynesian rat is Least Concern while Simons’s Mouse Opossum is Not Evaluated.

Taxonomic Classification

Rank	Polynesian rat	Simons’s Mouse Opossum
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Rodentia (Rodents)	Didelphimorphia (Didelphimorphia)
Family	Muridae (Mice & Rats)	Didelphidae
Genus	Rattus	Marmosa
Species	Rattus exulans	Marmosa simonsi

Evolutionary Relationship

Polynesian rat and Simons’s Mouse Opossum share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

Polynesian rat

LC — Least Concern

Simons’s Mouse Opossum

NE — Not Evaluated

Physical Characteristics

Attribute	Polynesian rat	Simons’s Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Polynesian rat

Habitat

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

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Simons’s Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.