Brown Rat vs Japanese Water Shrew

Rattus norvegicus compared with Chimarrogale platycephalus

Taxonomic Classification

Rank	Brown Rat	Japanese Water Shrew
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Rodentia (Bộ Gặm nhấm)	Soricomorpha (Bộ Chuột chù)
Family	Muridae (Mice & Rats)	Soricidae
Genus	Rattus	Chimarrogale
Species	Rattus norvegicus	Chimarrogale platycephalus

Evolutionary Relationship

Brown Rat and Japanese Water Shrew share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Brown Rat

LC — Least Concern

Japanese Water Shrew

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Japanese Water Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Japanese Water Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brown Rat

Brown Rat (Rattus norvegicus) 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.