Brown Rat vs Isarog Chrotomys

Rattus norvegicus compared with Chrotomys gonzalesi

Key Differences

• Brown Rat is Least Concern while Isarog Chrotomys is Near Threatened.

Taxonomic Classification

Rank	Brown Rat	Isarog Chrotomys
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family same	Muridae (Mice & Rats)	Muridae (Mice & Rats)
Genus	Rattus	Chrotomys
Species	Rattus norvegicus	Chrotomys gonzalesi

Evolutionary Relationship

Brown Rat and Isarog Chrotomys share a common ancestor at the Family level: Muridae. (Mice & Rats)

Conservation Status

Brown Rat

LC — Least Concern

Isarog Chrotomys

NT — Near Threatened

Physical Characteristics

Attribute	Brown Rat	Isarog Chrotomys
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).

Isarog Chrotomys

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.