Big Finner vs Lesser Northern Free-tailed Bat

Balaenoptera physalus compared with Chaerephon johorensis

Key Differences

• Big Finner is Endangered while Lesser Northern Free-tailed Bat is Vulnerable.

Taxonomic Classification

Rank	Big Finner	Lesser Northern 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)	Chaerephon
Species	Balaenoptera physalus	Chaerephon johorensis

Evolutionary Relationship

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

Conservation Status

Big Finner

EN — Endangered

Lesser Northern Free-tailed Bat

VU — Vulnerable

Physical Characteristics

Attribute	Big Finner	Lesser Northern 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.

Lesser Northern Free-tailed Bat

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.