Brown Rat vs Texas walnut

Rattus norvegicus compared with Juglans microcarpa

Taxonomic Classification

Rank	Brown Rat	Texas walnut
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Fagales (Beeches & Oaks)
Family	Muridae (Mice & Rats)	Juglandaceae
Genus	Rattus	Juglans
Species	Rattus norvegicus	Juglans microcarpa

Conservation Status

Brown Rat

LC — Least Concern

Texas walnut

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Texas walnut
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).

Texas walnut

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Armenia.

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.