Narrow-headed Vole vs sei whale

Microtus gregalis compared with Balaenoptera borealis

Key Differences

• Narrow-headed Vole is Least Concern while sei whale is Endangered.

Taxonomic Classification

Rank	Narrow-headed Vole	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	Microtus	Balaenoptera (Rorquals)
Species	Microtus gregalis	Balaenoptera borealis

Evolutionary Relationship

Narrow-headed Vole and sei whale share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Narrow-headed Vole

LC — Least Concern

sei whale

EN — Endangered

Physical Characteristics

Attribute	Narrow-headed Vole	sei whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Narrow-headed Vole

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.