Polynesian rat vs undulate ray

Rattus exulans compared with Raja undulata

Key Differences

• Polynesian rat is Least Concern while undulate ray is Endangered.

Taxonomic Classification

Rank	Polynesian rat	undulate ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Muridae (Mice & Rats)	Rajidae
Genus	Rattus	Raja
Species	Rattus exulans	Raja undulata

Evolutionary Relationship

Polynesian rat and undulate ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Polynesian rat

LC — Least Concern

undulate ray

EN — Endangered

Physical Characteristics

Attribute	Polynesian rat	undulate ray
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).

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.