Brown Rat vs Sri Lankan Mountain Rat

Rattus norvegicus compared with Rattus montanus

Key Differences

• Brown Rat is Least Concern while Sri Lankan Mountain Rat is Endangered.

Taxonomic Classification

Rank	Brown Rat	Sri Lankan Mountain Rat
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Rodentia (อันดับสัตว์ฟันแทะ)	Rodentia (อันดับสัตว์ฟันแทะ)
Family same	Muridae (Mice & Rats)	Muridae (Mice & Rats)
Genus same	Rattus	Rattus
Species	Rattus norvegicus	Rattus montanus

Evolutionary Relationship

Brown Rat and Sri Lankan Mountain Rat share a common ancestor at the Genus level: Rattus.

Conservation Status

Brown Rat

LC — Least Concern

Sri Lankan Mountain Rat

EN — Endangered

Physical Characteristics

Attribute	Brown Rat	Sri Lankan Mountain Rat
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).

Sri Lankan Mountain Rat

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.