Arctic lemming vs ナガスクジラ

Dicrostonyx torquatus compared with Balaenoptera physalus

Key Differences

• Arctic lemming is Least Concern while ナガスクジラ is Endangered.

Taxonomic Classification

Rank	Arctic lemming	ナガスクジラ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Cetacea (Whales & Dolphins)
Family	Cricetidae	Balaenopteridae (Rorquals)
Genus	Dicrostonyx	Balaenoptera (Rorquals)
Species	Dicrostonyx torquatus	Balaenoptera physalus

Evolutionary Relationship

Arctic lemming and ナガスクジラ share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Arctic lemming

LC — Least Concern

ナガスクジラ

EN — Endangered

Physical Characteristics

Attribute	Arctic lemming	ナガスクジラ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

ナガスクジラ

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). 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.

ナガスクジラ

ナガスクジラ（Balaenoptera physalus）は、IUCNレッドリストで絶滅危惧種（EN）に分類されています。野生での絶滅リスクが高く、個体数の著しい減少と生存への継続的な脅威に直面しています。