Polynesian rat vs Swamp Dwarf Crayfish

Rattus exulans compared with Cambarellus puer

Taxonomic Classification

Rank	Polynesian rat	Swamp Dwarf Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Decapoda (Decapoda)
Family	Muridae (Mice & Rats)	Cambaridae
Genus	Rattus	Cambarellus
Species	Rattus exulans	Cambarellus puer

Evolutionary Relationship

Polynesian rat and Swamp Dwarf Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Polynesian rat

LC — Least Concern

Swamp Dwarf Crayfish

LC — Least Concern

Physical Characteristics

Attribute	Polynesian rat	Swamp Dwarf Crayfish
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).

Swamp Dwarf Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.