Big Finner vs Flat Abalone

Balaenoptera physalus compared with Haliotis walallensis

Key Differences

• Big Finner is Endangered while Flat Abalone is Critically Endangered.

Taxonomic Classification

Rank	Big Finner	Flat Abalone
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Cetacea (Whales & Dolphins)	Lepetellida (Lepetellida)
Family	Balaenopteridae (Rorquals)	Haliotidae
Genus	Balaenoptera (Rorquals)	Haliotis
Species	Balaenoptera physalus	Haliotis walallensis

Evolutionary Relationship

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

Conservation Status

Big Finner

EN — Endangered

Flat Abalone

CR — Critically Endangered

Physical Characteristics

Attribute	Big Finner	Flat Abalone
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.

Flat Abalone

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.