blue whale vs Plaščenosnaja akula

Balaenoptera musculus compared with Chlamydoselachus anguineus

Key Differences

• blue whale is Vulnerable while Plaščenosnaja akula is Least Concern.

Taxonomic Classification

Rank	blue whale	Plaščenosnaja akula
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Hexanchiformes (многожаберникообразные)
Family	Balaenopteridae (Rorquals)	Chlamydoselachidae
Genus	Balaenoptera (Rorquals)	Chlamydoselachus
Species	Balaenoptera musculus	Chlamydoselachus anguineus

Evolutionary Relationship

blue whale and Plaščenosnaja akula share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Plaščenosnaja akula

LC — Least Concern

Physical Characteristics

Attribute	blue whale	Plaščenosnaja akula
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

blue whale

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.

Plaščenosnaja akula

Habitat

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

Range

Distributed across Chile, Norway, Portugal, and Taiwan.

blue whale

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.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇹🇼 Taiwan