Assam Mole Shrew vs Brown Rat

Anourosorex assamensis compared with Rattus norvegicus

Taxonomic Classification

Rank	Assam Mole Shrew	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Soricomorpha (Soricomorpha)	Rodentia (Rodents)
Family	Soricidae	Muridae (Mice & Rats)
Genus	Anourosorex	Rattus
Species	Anourosorex assamensis	Rattus norvegicus

Evolutionary Relationship

Assam Mole Shrew and Brown Rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Assam Mole Shrew

LC — Least Concern

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Assam Mole Shrew	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Assam Mole Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Assam Mole Shrew

The Assam Mole Shrew (Anourosorex assamensis) is a species in the genus Anourosorex. It is currently classified as Least Concern on the IUCN Red List. 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.