Big Finner vs Haviside s Dolphin

Balaenoptera physalus compared with Cephalorhynchus heavisidii

Key Differences

• Big Finner is Endangered while Haviside s Dolphin is Near Threatened.

Taxonomic Classification

Rank	Big Finner	Haviside s Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family	Balaenopteridae (Rorquals)	Delphinidae (Oceanic Dolphins)
Genus	Balaenoptera (Rorquals)	Cephalorhynchus
Species	Balaenoptera physalus	Cephalorhynchus heavisidii

Evolutionary Relationship

Big Finner and Haviside s Dolphin share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Big Finner

EN — Endangered

Haviside s Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	Big Finner	Haviside s Dolphin
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.

Haviside s Dolphin

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.