Lake Lamprey vs Polynesian rat

Entosphenus macrostomus compared with Rattus exulans

Key Differences

• Lake Lamprey is Endangered while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Lake Lamprey	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Petromyzonti (Petromyzonti)	Mammalia (Mammals)
Order	Petromyzontiformes (lamprey)	Rodentia (Rodents)
Family	Petromyzontidae	Muridae (Mice & Rats)
Genus	Entosphenus	Rattus
Species	Entosphenus macrostomus	Rattus exulans

Evolutionary Relationship

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

Conservation Status

Lake Lamprey

EN — Endangered

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Lake Lamprey	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lake Lamprey

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).