Brown Rat vs Catshark

Rattus norvegicus compared with Chiloscyllium indicum

Key Differences

• Brown Rat is Least Concern while Catshark is Vulnerable.

Taxonomic Classification

Rank	Brown Rat	Catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Orectolobiformes (Orectolobiformes)
Family	Muridae (Mice & Rats)	Hemiscylliidae
Genus	Rattus	Chiloscyllium
Species	Rattus norvegicus	Chiloscyllium indicum

Evolutionary Relationship

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

Conservation Status

Brown Rat

LC — Least Concern

Catshark

VU — Vulnerable

Physical Characteristics

Attribute	Brown Rat	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).

Catshark

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.

Catshark

The Catshark (Chiloscyllium indicum) is a species in the genus Chiloscyllium. It is currently classified as Vulnerable on the IUCN Red List.