Australian cow-nose ray vs blue whale

Rhinoptera neglecta compared with Balaenoptera musculus

Key Differences

• Australian cow-nose ray is Data Deficient while blue whale is Vulnerable.

Taxonomic Classification

Rank	Australian cow-nose ray	blue whale
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Elasmobranchii	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Myliobatiformes (อันดับปลากระเบน)	Cetacea (Whales & Dolphins)
Family	Myliobatidae	Balaenopteridae (Rorquals)
Genus	Rhinoptera	Balaenoptera (Rorquals)
Species	Rhinoptera neglecta	Balaenoptera musculus

Evolutionary Relationship

Australian cow-nose ray and blue whale share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Australian cow-nose ray

DD — Data Deficient

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Australian cow-nose ray	blue whale
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Australian cow-nose ray

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.

Australian cow-nose ray

The Australian cow-nose ray (Rhinoptera neglecta) is a species in the genus Rhinoptera. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Rhinoptera neglecta contributes to the biodiversity of its native ecosystems.

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.