Big Finner vs Gulf of California Harbor Porpoise

Balaenoptera physalus compared with Phocoena sinus

Key Differences

• Big Finner is Endangered while Gulf of California Harbor Porpoise is Critically Endangered.

Taxonomic Classification

Rank	Big Finner	Gulf of California Harbor Porpoise
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family	Balaenopteridae (Rorquals)	Phocoenidae
Genus	Balaenoptera (Rorquals)	Phocoena
Species	Balaenoptera physalus	Phocoena sinus

Evolutionary Relationship

Big Finner and Gulf of California Harbor Porpoise share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Big Finner

EN — Endangered

Gulf of California Harbor Porpoise

CR — Critically Endangered

Physical Characteristics

Attribute	Big Finner	Gulf of California Harbor Porpoise
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.

Gulf of California Harbor Porpoise

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.