Brown Rat vs Smooth nose wedgefish

Rattus norvegicus compared with Rhynchobatus laevis

Key Differences

• Brown Rat is Least Concern while Smooth nose wedgefish is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Smooth nose wedgefish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rhinopristiformes (Rhinopristiformes)
Family	Muridae (Mice & Rats)	Rhinidae
Genus	Rattus	Rhynchobatus
Species	Rattus norvegicus	Rhynchobatus laevis

Evolutionary Relationship

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

Conservation Status

Brown Rat

LC — Least Concern

Smooth nose wedgefish

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	Smooth nose wedgefish
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).

Smooth nose wedgefish

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.