Big Finner vs Black Duiker

Balaenoptera physalus compared with Cephalophus niger

Key Differences

• Big Finner is Endangered while Black Duiker is Least Concern.

Taxonomic Classification

Rank	Big Finner	Black Duiker
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Artiodactyla (Even-toed Ungulates)
Family	Balaenopteridae (Rorquals)	Bovidae (Bovids)
Genus	Balaenoptera (Rorquals)	Cephalophus
Species	Balaenoptera physalus	Cephalophus niger

Evolutionary Relationship

Big Finner and Black Duiker share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Big Finner

EN — Endangered

Black Duiker

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Black Duiker
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 Duiker

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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 Duiker

The Black Duiker (Cephalophus niger) is a species in the genus Cephalophus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.