Amur Brown Frog vs Big Finner

Rana amurensis compared with Balaenoptera physalus

Key Differences

• Amur Brown Frog is Least Concern while Big Finner is Endangered.

Taxonomic Classification

Rank	Amur Brown Frog	Big Finner
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Cetacea (Whales & Dolphins)
Family	Ranidae	Balaenopteridae (Rorquals)
Genus	Rana	Balaenoptera (Rorquals)
Species	Rana amurensis	Balaenoptera physalus

Evolutionary Relationship

Amur Brown Frog and Big Finner share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amur Brown Frog

LC — Least Concern

Big Finner

EN — Endangered

Physical Characteristics

Attribute	Amur Brown Frog	Big Finner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amur Brown Frog

Habitat

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

Range

Found in Russia.

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.

Amur Brown Frog

The Amur Brown Frog (Rana amurensis) is a species in the genus Rana. It is currently classified as Least Concern on the IUCN Red List. 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.