Blue Dolphin vs Granular dogfish

Stenella coeruleoalba compared with Centroscyllium granulatum

Key Differences

• Blue Dolphin is Least Concern while Granular dogfish is Vulnerable.

Taxonomic Classification

Rank	Blue Dolphin	Granular dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Squaliformes (Squaliformes)
Family	Delphinidae (Oceanic Dolphins)	Etmopteridae
Genus	Stenella	Centroscyllium
Species	Stenella coeruleoalba	Centroscyllium granulatum

Evolutionary Relationship

Blue Dolphin and Granular dogfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blue Dolphin

LC — Least Concern

Granular dogfish

VU — Vulnerable

Physical Characteristics

Attribute	Blue Dolphin	Granular dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela).

Granular dogfish

Habitat

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

Range

Found in Chile. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Blue Dolphin

Blue Dolphin (Stenella coeruleoalba) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.