Brown Rat vs Chili River Toad

Rattus norvegicus compared with Rhinella arequipensis

Key Differences

• Brown Rat is Least Concern while Chili River Toad is Endangered.

Taxonomic Classification

Rank	Brown Rat	Chili River Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Muridae (Mice & Rats)	Bufonidae
Genus	Rattus	Rhinella
Species	Rattus norvegicus	Rhinella arequipensis

Evolutionary Relationship

Brown Rat and Chili River Toad share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Chili River Toad

EN — Endangered

Physical Characteristics

Attribute	Brown Rat	Chili River Toad
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).

Chili River Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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.

Chili River Toad

The Chili River Toad (Rhinella arequipensis) is a species in the genus Rhinella. It is currently classified as Endangered on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.