Brown Rat vs Small Screeching Frog

Rattus norvegicus compared with Arthroleptis kidogo

Key Differences

• Brown Rat is Least Concern while Small Screeching Frog is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Small Screeching Frog
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)	Arthroleptidae
Genus	Rattus	Arthroleptis
Species	Rattus norvegicus	Arthroleptis kidogo

Evolutionary Relationship

Brown Rat and Small Screeching Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Small Screeching Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	Small Screeching Frog
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).

Small Screeching Frog

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.