Aried cat shark vs blue whale

Parascyllium variolatum compared with Balaenoptera musculus

Key Differences

• Aried cat shark is Least Concern while blue whale is Vulnerable.

Taxonomic Classification

Rank	Aried cat shark	blue whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Orectolobiformes (Orectolobiformes)	Cetacea (Whales & Dolphins)
Family	Parascylliidae	Balaenopteridae (Rorquals)
Genus	Parascyllium	Balaenoptera (Rorquals)
Species	Parascyllium variolatum	Balaenoptera musculus

Evolutionary Relationship

Aried cat shark and blue whale share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Aried cat shark

LC — Least Concern

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Aried cat shark	blue whale
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Aried cat shark

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.

Aried cat shark

The Aried cat shark, Parascyllium variolatum, is a species. It is currently assessed as least concern on the IUCN Red List.

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.