Arctic lemming vs sei whale

Dicrostonyx torquatus compared with Balaenoptera borealis

Key Differences

• Arctic lemming is Least Concern while sei whale is Endangered.

Taxonomic Classification

Rank	Arctic lemming	sei whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Cetacea (Whales & Dolphins)
Family	Cricetidae	Balaenopteridae (Rorquals)
Genus	Dicrostonyx	Balaenoptera (Rorquals)
Species	Dicrostonyx torquatus	Balaenoptera borealis

Evolutionary Relationship

Arctic lemming and sei whale share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Arctic lemming

LC — Least Concern

sei whale

EN — Endangered

Physical Characteristics

Attribute	Arctic lemming	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

sei whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic lemming

The Arctic lemming (Dicrostonyx torquatus) is a species in the genus Dicrostonyx. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.