Big Finner vs Muiskaya Polyovka

Balaenoptera physalus compared with Microtus mujanensis

Key Differences

• Big Finner is Endangered while Muiskaya Polyovka is Data Deficient.

Taxonomic Classification

Rank	Big Finner	Muiskaya Polyovka
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Cetacea (Whales & Dolphins)	Rodentia (грызуны)
Family	Balaenopteridae (Rorquals)	Cricetidae
Genus	Balaenoptera (Rorquals)	Microtus
Species	Balaenoptera physalus	Microtus mujanensis

Evolutionary Relationship

Big Finner and Muiskaya Polyovka share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Big Finner

EN — Endangered

Muiskaya Polyovka

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	Muiskaya Polyovka
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.

Muiskaya Polyovka

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.