Blue Dolphin vs Sharp-tooth smooth hound

Stenella coeruleoalba compared with Mustelus dorsalis

Key Differences

• Blue Dolphin is Least Concern while Sharp-tooth smooth hound is Vulnerable.

Taxonomic Classification

Rank	Blue Dolphin	Sharp-tooth smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Cetacea (Whales & Dolphins)	Carcharhiniformes (Ground Sharks)
Family	Delphinidae (Oceanic Dolphins)	Triakidae
Genus	Stenella	Mustelus
Species	Stenella coeruleoalba	Mustelus dorsalis

Evolutionary Relationship

Blue Dolphin and Sharp-tooth smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blue Dolphin

LC — Least Concern

Sharp-tooth smooth hound

VU — Vulnerable

Physical Characteristics

Attribute	Blue Dolphin	Sharp-tooth smooth hound
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).

Sharp-tooth smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.