Brown Rat vs Chihuahua Gray

Rattus norvegicus compared with Aphonopelma pallidum

Taxonomic Classification

Rank	Brown Rat	Chihuahua Gray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Rodentia (Rodents)	Araneae (Araneae)
Family	Muridae (Mice & Rats)	Theraphosidae
Genus	Rattus	Aphonopelma
Species	Rattus norvegicus	Aphonopelma pallidum

Evolutionary Relationship

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

Conservation Status

Brown Rat

LC — Least Concern

Chihuahua Gray

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Chihuahua Gray
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).

Chihuahua Gray

Habitat

Typically found in terrestrial habitats from forests to deserts.

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.

Chihuahua Gray

The Chihuahua Gray (Aphonopelma pallidum) is a species in the genus Aphonopelma. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.