Polynesian rat vs Smooth nose wedgefish

Rattus exulans compared with Rhynchobatus laevis

Key Differences

• Polynesian rat is Least Concern while Smooth nose wedgefish is Critically Endangered.

Taxonomic Classification

Rank	Polynesian 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 exulans	Rhynchobatus laevis

Evolutionary Relationship

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

Conservation Status

Polynesian rat

LC — Least Concern

Smooth nose wedgefish

CR — Critically Endangered

Physical Characteristics

Attribute	Polynesian rat	Smooth nose wedgefish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Smooth nose wedgefish