Big Finner vs Gallagher's Free-tailed Bat

Balaenoptera physalus compared with Chaerephon gallagheri

Key Differences

• Big Finner is Endangered while Gallagher's Free-tailed Bat is Data Deficient.

Taxonomic Classification

Rank	Big Finner	Gallagher's Free-tailed Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Chiroptera (Bats)
Family	Balaenopteridae (Rorquals)	Molossidae
Genus	Balaenoptera (Rorquals)	Chaerephon
Species	Balaenoptera physalus	Chaerephon gallagheri

Evolutionary Relationship

Big Finner and Gallagher's Free-tailed Bat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Big Finner

EN — Endangered

Gallagher's Free-tailed Bat

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	Gallagher's 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.

Gallagher's 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.