Big Finner vs Redclaw

Balaenoptera physalus compared with Cherax quadricarinatus

Key Differences

• Big Finner is Endangered while Redclaw is Least Concern.

Taxonomic Classification

Rank	Big Finner	Redclaw
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Cetacea (Whales & Dolphins)	Decapoda (Decapoda)
Family	Balaenopteridae (Rorquals)	Parastacidae
Genus	Balaenoptera (Rorquals)	Cherax
Species	Balaenoptera physalus	Cherax quadricarinatus

Evolutionary Relationship

Big Finner and Redclaw share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big Finner

EN — Endangered

Redclaw

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Redclaw
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.

Redclaw

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Widely distributed across Africa (4 countries), Asia (8 countries), Europe (8 countries), North America (5 countries), and South America (5 countries).

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 5 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇹🇼 Taiwan