Big Finner vs Black-marked Robber Frog

Balaenoptera physalus compared with Pristimantis melanoproctus

Key Differences

• Big Finner is Endangered while Black-marked Robber Frog is Data Deficient.

Taxonomic Classification

Rank	Big Finner	Black-marked Robber Frog
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)	Craugastoridae
Genus	Balaenoptera (Rorquals)	Pristimantis
Species	Balaenoptera physalus	Pristimantis melanoproctus

Evolutionary Relationship

Big Finner and Black-marked Robber Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Finner

EN — Endangered

Black-marked Robber Frog

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	Black-marked Robber 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.

Black-marked Robber Frog

Habitat

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

Range

Found in 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.

Black-marked Robber Frog

The Black-marked Robber Frog (Pristimantis melanoproctus) is a species in the genus Pristimantis. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in freshwater habitats, moist forests, and wetlands.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela