Iwami-sansyou-uwo vs Polynesian rat

Hynobius iwami compared with Rattus exulans

Key Differences

• Iwami-sansyou-uwo is Endangered while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Iwami-sansyou-uwo	Polynesian rat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Amphibia (両生類)	Mammalia (哺乳類)
Order	Caudata (有尾目)	Rodentia (ネズミ目)
Family	Hynobiidae	Muridae (Mice & Rats)
Genus	Hynobius	Rattus
Species	Hynobius iwami	Rattus exulans

Evolutionary Relationship

Iwami-sansyou-uwo and Polynesian rat share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Iwami-sansyou-uwo

EN — Endangered

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Iwami-sansyou-uwo	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Iwami-sansyou-uwo

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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).