Big Finner vs Chilean round stingray

Balaenoptera physalus compared with Urobatis marmoratus

Key Differences

• Big Finner is Endangered while Chilean round stingray is Data Deficient.

Taxonomic Classification

Rank	Big Finner	Chilean round stingray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Myliobatiformes (Myliobatiformes)
Family	Balaenopteridae (Rorquals)	Urotrygonidae
Genus	Balaenoptera (Rorquals)	Urobatis
Species	Balaenoptera physalus	Urobatis marmoratus

Evolutionary Relationship

Big Finner and Chilean round stingray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Finner

EN — Endangered

Chilean round stingray

DD — Data Deficient

Physical Characteristics

Attribute	Big Finner	Chilean round stingray
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.

Chilean round stingray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.

Chilean round stingray

The Chilean round stingray (Urobatis marmoratus) is a species in the genus Urobatis. It is currently classified as Data Deficient on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.