Arrraia vs blue whale

Tetronarce nobiliana compared with Balaenoptera musculus

Key Differences

• Arrraia is Not Evaluated while blue whale is Vulnerable.

Taxonomic Classification

Rank	Arrraia	blue whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Mammalia (mamíferos)
Order	Torpediniformes (electric ray)	Cetacea (Whales & Dolphins)
Family	Torpedinidae	Balaenopteridae (Rorquals)
Genus	Tetronarce	Balaenoptera (Rorquals)
Species	Tetronarce nobiliana	Balaenoptera musculus

Evolutionary Relationship

Arrraia and blue whale share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Arrraia

NE — Not Evaluated

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

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

Habitat & Geographic Range

Arrraia

Habitat

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

Range

Distributed across Denmark, Norway, and Venezuela.

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.

Arrraia

The Atlantic Electric Ray (Tetronarce nobiliana) is a species in the genus Tetronarce. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

blue whale

O maior animal que já viveu na Terra, as baleias-azuis podem atingir 33 metros e 200 toneladas — seus corações sozinhos pesam tanto quanto um carro pequeno. Encontradas em todos os oceanos, migram entre áreas de alimentação polares e áreas de reprodução tropicais. Filtradores que consomem até 4 toneladas de krill diariamente. Em perigo, com populações globais estimadas em 10.000–25.000 após a quase extinção causada pela caça baleeira no século XX.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway