Norway lemming vs Pacific Spiny-rat

Lemmus lemmus compared with Proechimys decumanus

Key Differences

• Norway lemming is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Norway lemming	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Cricetidae	Echimyidae
Genus	Lemmus	Proechimys
Species	Lemmus lemmus	Proechimys decumanus

Evolutionary Relationship

Norway lemming and Pacific Spiny-rat share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Norway lemming

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Norway lemming	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Norway lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Norway and Sweden.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.