Big Finner vs Fei’s Small Tree Frog

Balaenoptera physalus compared with Liuixalus feii

Key Differences

• Big Finner is Endangered while Fei’s Small Tree Frog is Least Concern.

Taxonomic Classification

Rank	Big Finner	Fei’s Small Tree Frog
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Amphibia (земноводные)
Order	Cetacea (Whales & Dolphins)	Anura (бесхвостые земноводные)
Family	Balaenopteridae (Rorquals)	Rhacophoridae
Genus	Balaenoptera (Rorquals)	Liuixalus
Species	Balaenoptera physalus	Liuixalus feii

Evolutionary Relationship

Big Finner and Fei’s Small Tree Frog share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Big Finner

EN — Endangered

Fei’s Small Tree Frog

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Fei’s Small Tree Frog
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.

Fei’s Small Tree Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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.