Austral ray vs Zwergwal

Bathyraja griseocauda compared with Balaenoptera acutorostrata

Key Differences

• Austral ray is Endangered while Zwergwal is Least Concern.

Taxonomic Classification

Rank	Austral ray	Zwergwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Rajiformes (Rajiformes)	Cetacea (Whales & Dolphins)
Family	Arhynchobatidae	Balaenopteridae (Rorquals)
Genus	Bathyraja	Balaenoptera (Rorquals)
Species	Bathyraja griseocauda	Balaenoptera acutorostrata

Evolutionary Relationship

Austral ray and Zwergwal share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Austral ray

EN — Endangered

Zwergwal

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Zwergwal
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Austral ray

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Zwergwal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador).

Austral ray

The Austral ray (Bathyraja griseocauda) is a species in the genus Bathyraja. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Zwergwal

Bagwhale (Balaenoptera acutorostrata) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.