Polynesian rat vs Yabby

Rattus exulans compared with Cherax destructor

Key Differences

• Polynesian rat is Least Concern while Yabby is Vulnerable.

Taxonomic Classification

Rank	Polynesian rat	Yabby
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Decapoda (Decapoda)
Family	Muridae (Mice & Rats)	Parastacidae
Genus	Rattus	Cherax
Species	Rattus exulans	Cherax destructor

Evolutionary Relationship

Polynesian rat and Yabby share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Polynesian rat

LC — Least Concern

Yabby

VU — Vulnerable

Physical Characteristics

Attribute	Polynesian rat	Yabby
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).

Yabby

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 7 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (China), Europe (4 countries), and North America (Mexico). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.