Caatinga laucha vs Polynesian rat

Calomys expulsus compared with Rattus exulans

Taxonomic Classification

Rank	Caatinga laucha	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Cricetidae	Muridae (Mice & Rats)
Genus	Calomys	Rattus
Species	Calomys expulsus	Rattus exulans

Evolutionary Relationship

Caatinga laucha and Polynesian rat share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Caatinga laucha

LC — Least Concern

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Caatinga laucha	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caatinga laucha

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Caatinga laucha

The Caatinga laucha (Calomys expulsus) is a species in the genus Calomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.