Brown Rat vs Sparsetooth dogfish

Rattus norvegicus compared with Scymnodalatias oligodon

Taxonomic Classification

Rank	Brown Rat	Sparsetooth dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Squaliformes (Squaliformes)
Family	Muridae (Mice & Rats)	Somniosidae
Genus	Rattus	Scymnodalatias
Species	Rattus norvegicus	Scymnodalatias oligodon

Evolutionary Relationship

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

Conservation Status

Brown Rat

LC — Least Concern

Sparsetooth dogfish

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Sparsetooth dogfish
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).

Sparsetooth dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.

Shared Countries

Both species can be found in 1 countries:

🇨🇱 Chile