Bigeye Numbfish vs Brown Rat

Narcine oculifera compared with Rattus norvegicus

Key Differences

• Bigeye Numbfish is Data Deficient while Brown Rat is Least Concern.

Taxonomic Classification

Rank	Bigeye Numbfish	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Torpediniformes (electric ray)	Rodentia (Rodents)
Family	Narcinidae	Muridae (Mice & Rats)
Genus	Narcine	Rattus
Species	Narcine oculifera	Rattus norvegicus

Evolutionary Relationship

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

Conservation Status

Bigeye Numbfish

DD — Data Deficient

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Bigeye Numbfish	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye Numbfish

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).

Bigeye Numbfish

The Bigeye Numbfish (Narcine oculifera) is a species in the genus Narcine.

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.