Brown Rat vs Dwarf catshark

Rattus norvegicus compared with Asymbolus parvus

Taxonomic Classification

Rank	Brown Rat	Dwarf catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Muridae (Mice & Rats)	Scyliorhinidae
Genus	Rattus	Asymbolus
Species	Rattus norvegicus	Asymbolus parvus

Evolutionary Relationship

Brown Rat and Dwarf catshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Dwarf catshark

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Dwarf catshark
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).

Dwarf catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.