Big Finner vs East Asian Free-tailed Bat

Balaenoptera physalus compared with Tadarida insignis

Key Differences

• Big Finner is Endangered while East Asian Free-tailed Bat is Data Deficient.

Taxonomic Classification

Rank	Big Finner	East Asian Free-tailed Bat
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Mammalia (memeliler)	Mammalia (memeliler)
Order	Cetacea (Whales & Dolphins)	Chiroptera (yarasa)
Family	Balaenopteridae (Rorquals)	Molossidae
Genus	Balaenoptera (Rorquals)	Tadarida
Species	Balaenoptera physalus	Tadarida insignis

Evolutionary Relationship

Big Finner and East Asian Free-tailed Bat share a common ancestor at the Class level: Mammalia. (memeliler)

Conservation Status

Big Finner

EN — Endangered

East Asian Free-tailed Bat

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	East Asian Free-tailed Bat
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.

East Asian Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan.

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.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan