Brown Rat vs dooryard sowbug

Rattus norvegicus compared with Porcellio laevis

Taxonomic Classification

Rank	Brown Rat	dooryard sowbug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Isopoda (Isopoda)
Family	Muridae (Mice & Rats)	Porcellionidae
Genus	Rattus	Porcellio
Species	Rattus norvegicus	Porcellio laevis

Evolutionary Relationship

Brown Rat and dooryard sowbug share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Brown Rat

LC — Least Concern

dooryard sowbug

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	dooryard sowbug
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).

dooryard sowbug

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (12 countries), North America (United States), and South America (Brazil).

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.