Blauwal vs Richardsons Tiefenrochen

Balaenoptera musculus compared with Bathyraja richardsoni

Key Differences

Blauwal is Vulnerable while Richardsons Tiefenrochen is Least Concern.

Taxonomic Classification

Rank	Blauwal	Richardsons Tiefenrochen
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Rajiformes (Rajiformes)
Family	Balaenopteridae (Rorquals)	Arhynchobatidae
Genus	Balaenoptera (Rorquals)	Bathyraja
Species	Balaenoptera musculus	Bathyraja richardsoni

Evolutionary Relationship

Blauwal and Richardsons Tiefenrochen share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Ansehen Phylum: Chordata

Conservation Status

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Richardsons Tiefenrochen

LC — Least Concern

Physical Characteristics

Attribute	Blauwal	Richardsons Tiefenrochen
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

Blauwal

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Richardsons Tiefenrochen

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Portugal.

Blauwal

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.