Big Finner vs Cooks bramble shark

Balaenoptera physalus compared with Echinorhinus cookei

Key Differences

• Big Finner is Endangered while Cooks bramble shark is Data Deficient.

Taxonomic Classification

Rank	Big Finner	Cooks bramble shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Squaliformes (Squaliformes)
Family	Balaenopteridae (Rorquals)	Echinorhinidae
Genus	Balaenoptera (Rorquals)	Echinorhinus
Species	Balaenoptera physalus	Echinorhinus cookei

Evolutionary Relationship

Big Finner and Cooks bramble shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Finner

EN — Endangered

Cooks bramble shark

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	Cooks bramble shark
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.

Cooks bramble shark

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile, Colombia, and Taiwan.

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 2 countries:

🇨🇴 Colombia 🇹🇼 Taiwan