Big Finner vs Small-headed Treefrog

Balaenoptera physalus compared with Dendropsophus microcephalus

Key Differences

• Big Finner is Endangered while Small-headed Treefrog is Least Concern.

Taxonomic Classification

Rank	Big Finner	Small-headed Treefrog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Cetacea (Whales & Dolphins)	Anura (Frogs & Toads)
Family	Balaenopteridae (Rorquals)	Hylidae
Genus	Balaenoptera (Rorquals)	Dendropsophus
Species	Balaenoptera physalus	Dendropsophus microcephalus

Evolutionary Relationship

Big Finner and Small-headed Treefrog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Finner

EN — Endangered

Small-headed Treefrog

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Small-headed Treefrog
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.

Small-headed Treefrog

Habitat

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

Range

Distributed across Colombia, Mexico, and Venezuela.

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 🇻🇪 Venezuela