Big Finner vs Large-eared Mountain Vole

Balaenoptera physalus compared with Alticola macrotis

Key Differences

• Big Finner is Endangered while Large-eared Mountain Vole is Least Concern.

Taxonomic Classification

Rank	Big Finner	Large-eared Mountain Vole
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Rodentia (Rodents)
Family	Balaenopteridae (Rorquals)	Cricetidae
Genus	Balaenoptera (Rorquals)	Alticola
Species	Balaenoptera physalus	Alticola macrotis

Evolutionary Relationship

Big Finner and Large-eared Mountain Vole share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Big Finner

EN — Endangered

Large-eared Mountain Vole

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Large-eared Mountain Vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Finner

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.

Large-eared Mountain Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.