Big Finner vs Giant Noctule

Balaenoptera physalus compared with Nyctalus lasiopterus

Key Differences

• Big Finner is Endangered while Giant Noctule is Not Evaluated.

Taxonomic Classification

Rank	Big Finner	Giant Noctule
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)	Vespertilionidae
Genus	Balaenoptera (Rorquals)	Nyctalus
Species	Balaenoptera physalus	Nyctalus lasiopterus

Evolutionary Relationship

Big Finner and Giant Noctule share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Big Finner

EN — Endangered

Giant Noctule

NE — Not Evaluated

Physical Characteristics

Attribute	Big Finner	Giant Noctule
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.

Giant Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium and Ukraine.

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:

🇧🇪 Belgium